Home / 769,904.10-1,154,856.15-486,468.90

Finding the Fourth Proportional to 769,904.10, 1,154,856.15 and 486,468.90

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Solution

The fourth proportional to 769,904.10, 1,154,856.15 and 486,468.90 is: 729,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,904.10 : 1,154,856.15 = 486,468.90 : x
  2. Step 2: Convert to fraction form
    769,904.10/1,154,856.15 = 486,468.90/x
  3. Step 3: Cross multiply
    769,904.10x = 1,154,856.15 × 486,468.90
  4. Step 4: Simplify right side
    769,904.10x = 561,801,600,948.74
  5. Step 5: Solve for x
    x = 561,801,600,948.74/769,904.10
  6. Step 6: Final answer
    x = 729,703.35

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Double scale
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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.