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Finding the Fourth Proportional to 502,411.36, 752,739.50 and 418,709.41

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Solution

The fourth proportional to 502,411.36, 752,739.50 and 418,709.41 is: 627,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,411.36 : 752,739.50 = 418,709.41 : x
  2. Step 2: Convert to fraction form
    502,411.36/752,739.50 = 418,709.41/x
  3. Step 3: Cross multiply
    502,411.36x = 752,739.50 × 418,709.41
  4. Step 4: Simplify right side
    502,411.36x = 315,179,111,928.70
  5. Step 5: Solve for x
    x = 315,179,111,928.70/502,411.36
  6. Step 6: Final answer
    x = 627,332.77

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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.