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Finding the Fourth Proportional to 711,710.68, 982,063.84 and 425,169.92

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Solution

The fourth proportional to 711,710.68, 982,063.84 and 425,169.92 is: 586,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,710.68 : 982,063.84 = 425,169.92 : x
  2. Step 2: Convert to fraction form
    711,710.68/982,063.84 = 425,169.92/x
  3. Step 3: Cross multiply
    711,710.68x = 982,063.84 × 425,169.92
  4. Step 4: Simplify right side
    711,710.68x = 417,544,004,287.69
  5. Step 5: Solve for x
    x = 417,544,004,287.69/711,710.68
  6. Step 6: Final answer
    x = 586,676.60

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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.