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Finding the Fourth Proportional to 497,677.60, 746,516.40 and 287,725.60

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Solution

The fourth proportional to 497,677.60, 746,516.40 and 287,725.60 is: 431,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,677.60 : 746,516.40 = 287,725.60 : x
  2. Step 2: Convert to fraction form
    497,677.60/746,516.40 = 287,725.60/x
  3. Step 3: Cross multiply
    497,677.60x = 746,516.40 × 287,725.60
  4. Step 4: Simplify right side
    497,677.60x = 214,791,879,099.84
  5. Step 5: Solve for x
    x = 214,791,879,099.84/497,677.60
  6. Step 6: Final answer
    x = 431,588.40

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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.