Home / 683,139.70-1,025,487.15-402,814.90

Finding the Fourth Proportional to 683,139.70, 1,025,487.15 and 402,814.90

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Solution

The fourth proportional to 683,139.70, 1,025,487.15 and 402,814.90 is: 604,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,139.70 : 1,025,487.15 = 402,814.90 : x
  2. Step 2: Convert to fraction form
    683,139.70/1,025,487.15 = 402,814.90/x
  3. Step 3: Cross multiply
    683,139.70x = 1,025,487.15 × 402,814.90
  4. Step 4: Simplify right side
    683,139.70x = 413,081,503,778.54
  5. Step 5: Solve for x
    x = 413,081,503,778.54/683,139.70
  6. Step 6: Final answer
    x = 604,680.86

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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.