Home / 500,337.12-690,451.76-285,473.28

Finding the Fourth Proportional to 500,337.12, 690,451.76 and 285,473.28

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Solution

The fourth proportional to 500,337.12, 690,451.76 and 285,473.28 is: 393,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,337.12 : 690,451.76 = 285,473.28 : x
  2. Step 2: Convert to fraction form
    500,337.12/690,451.76 = 285,473.28/x
  3. Step 3: Cross multiply
    500,337.12x = 690,451.76 × 285,473.28
  4. Step 4: Simplify right side
    500,337.12x = 197,105,528,608.97
  5. Step 5: Solve for x
    x = 197,105,528,608.97/500,337.12
  6. Step 6: Final answer
    x = 393,945.44

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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.