Home / 782,393.96-1,079,729.34-442,854.92

Finding the Fourth Proportional to 782,393.96, 1,079,729.34 and 442,854.92

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Solution

The fourth proportional to 782,393.96, 1,079,729.34 and 442,854.92 is: 611,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,393.96 : 1,079,729.34 = 442,854.92 : x
  2. Step 2: Convert to fraction form
    782,393.96/1,079,729.34 = 442,854.92/x
  3. Step 3: Cross multiply
    782,393.96x = 1,079,729.34 × 442,854.92
  4. Step 4: Simplify right side
    782,393.96x = 478,163,450,487.35
  5. Step 5: Solve for x
    x = 478,163,450,487.35/782,393.96
  6. Step 6: Final answer
    x = 611,154.32

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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.