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Finding the Fourth Proportional to 500,602.48, 690,833.88 and 274,248.08

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Solution

The fourth proportional to 500,602.48, 690,833.88 and 274,248.08 is: 378,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,602.48 : 690,833.88 = 274,248.08 : x
  2. Step 2: Convert to fraction form
    500,602.48/690,833.88 = 274,248.08/x
  3. Step 3: Cross multiply
    500,602.48x = 690,833.88 × 274,248.08
  4. Step 4: Simplify right side
    500,602.48x = 189,459,865,188.95
  5. Step 5: Solve for x
    x = 189,459,865,188.95/500,602.48
  6. Step 6: Final answer
    x = 378,463.70

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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.