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Finding the Fourth Proportional to 500,545.16, 690,766.36 and 304,311.32

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Solution

The fourth proportional to 500,545.16, 690,766.36 and 304,311.32 is: 419,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,545.16 : 690,766.36 = 304,311.32 : x
  2. Step 2: Convert to fraction form
    500,545.16/690,766.36 = 304,311.32/x
  3. Step 3: Cross multiply
    500,545.16x = 690,766.36 × 304,311.32
  4. Step 4: Simplify right side
    500,545.16x = 210,208,022,823.20
  5. Step 5: Solve for x
    x = 210,208,022,823.20/500,545.16
  6. Step 6: Final answer
    x = 419,958.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.