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Finding the Fourth Proportional to 500,348.60, 690,472.76 and 270,904.04

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Solution

The fourth proportional to 500,348.60, 690,472.76 and 270,904.04 is: 373,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,348.60 : 690,472.76 = 270,904.04 : x
  2. Step 2: Convert to fraction form
    500,348.60/690,472.76 = 270,904.04/x
  3. Step 3: Cross multiply
    500,348.60x = 690,472.76 × 270,904.04
  4. Step 4: Simplify right side
    500,348.60x = 187,051,860,193.95
  5. Step 5: Solve for x
    x = 187,051,860,193.95/500,348.60
  6. Step 6: Final answer
    x = 373,843.08

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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.