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Finding the Fourth Proportional to 711,471.42, 982,080.72 and 439,747.74

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Solution

The fourth proportional to 711,471.42, 982,080.72 and 439,747.74 is: 607,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,471.42 : 982,080.72 = 439,747.74 : x
  2. Step 2: Convert to fraction form
    711,471.42/982,080.72 = 439,747.74/x
  3. Step 3: Cross multiply
    711,471.42x = 982,080.72 × 439,747.74
  4. Step 4: Simplify right side
    711,471.42x = 431,867,777,117.57
  5. Step 5: Solve for x
    x = 431,867,777,117.57/711,471.42
  6. Step 6: Final answer
    x = 607,006.50

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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.