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Finding the Fourth Proportional to 627,916.40, 940,319.40 and 503,500.40

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Solution

The fourth proportional to 627,916.40, 940,319.40 and 503,500.40 is: 754,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,916.40 : 940,319.40 = 503,500.40 : x
  2. Step 2: Convert to fraction form
    627,916.40/940,319.40 = 503,500.40/x
  3. Step 3: Cross multiply
    627,916.40x = 940,319.40 × 503,500.40
  4. Step 4: Simplify right side
    627,916.40x = 473,451,194,027.76
  5. Step 5: Solve for x
    x = 473,451,194,027.76/627,916.40
  6. Step 6: Final answer
    x = 754,003.55

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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.