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Finding the Fourth Proportional to 626,646.78, 940,325.66 and 338,454.85

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Solution

The fourth proportional to 626,646.78, 940,325.66 and 338,454.85 is: 507,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,646.78 : 940,325.66 = 338,454.85 : x
  2. Step 2: Convert to fraction form
    626,646.78/940,325.66 = 338,454.85/x
  3. Step 3: Cross multiply
    626,646.78x = 940,325.66 × 338,454.85
  4. Step 4: Simplify right side
    626,646.78x = 318,257,781,052.59
  5. Step 5: Solve for x
    x = 318,257,781,052.59/626,646.78
  6. Step 6: Final answer
    x = 507,874.28

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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.