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Finding the Fourth Proportional to 631,878.20, 946,281.30 and 335,737.40

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Solution

The fourth proportional to 631,878.20, 946,281.30 and 335,737.40 is: 502,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,878.20 : 946,281.30 = 335,737.40 : x
  2. Step 2: Convert to fraction form
    631,878.20/946,281.30 = 335,737.40/x
  3. Step 3: Cross multiply
    631,878.20x = 946,281.30 × 335,737.40
  4. Step 4: Simplify right side
    631,878.20x = 317,702,023,330.62
  5. Step 5: Solve for x
    x = 317,702,023,330.62/631,878.20
  6. Step 6: Final answer
    x = 502,789.97

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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.