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Finding the Fourth Proportional to 579,444.60, 869,166.90 and 558,449.40

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Solution

The fourth proportional to 579,444.60, 869,166.90 and 558,449.40 is: 837,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,444.60 : 869,166.90 = 558,449.40 : x
  2. Step 2: Convert to fraction form
    579,444.60/869,166.90 = 558,449.40/x
  3. Step 3: Cross multiply
    579,444.60x = 869,166.90 × 558,449.40
  4. Step 4: Simplify right side
    579,444.60x = 485,385,733,804.86
  5. Step 5: Solve for x
    x = 485,385,733,804.86/579,444.60
  6. Step 6: Final answer
    x = 837,674.10

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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.