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Finding the Fourth Proportional to 710,793.03, 980,892 and 388,502.94

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Solution

The fourth proportional to 710,793.03, 980,892 and 388,502.94 is: 536,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,793.03 : 980,892 = 388,502.94 : x
  2. Step 2: Convert to fraction form
    710,793.03/980,892 = 388,502.94/x
  3. Step 3: Cross multiply
    710,793.03x = 980,892 × 388,502.94
  4. Step 4: Simplify right side
    710,793.03x = 381,079,425,822.48
  5. Step 5: Solve for x
    x = 381,079,425,822.48/710,793.03
  6. Step 6: Final answer
    x = 536,132.76

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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.