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Finding the Fourth Proportional to 579,502.10, 869,253.15 and 326,522.90

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Solution

The fourth proportional to 579,502.10, 869,253.15 and 326,522.90 is: 489,784.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,502.10 : 869,253.15 = 326,522.90 : x
  2. Step 2: Convert to fraction form
    579,502.10/869,253.15 = 326,522.90/x
  3. Step 3: Cross multiply
    579,502.10x = 869,253.15 × 326,522.90
  4. Step 4: Simplify right side
    579,502.10x = 283,831,059,372.14
  5. Step 5: Solve for x
    x = 283,831,059,372.14/579,502.10
  6. Step 6: Final answer
    x = 489,784.35

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Half scale
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Double scale
Find fourth proportional to 579,503.10, 869,254.65 and 326,523.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.