Home / 782,394.96-1,079,730.72-442,855.92

Finding the Fourth Proportional to 782,394.96, 1,079,730.72 and 442,855.92

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Solution

The fourth proportional to 782,394.96, 1,079,730.72 and 442,855.92 is: 611,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,394.96 : 1,079,730.72 = 442,855.92 : x
  2. Step 2: Convert to fraction form
    782,394.96/1,079,730.72 = 442,855.92/x
  3. Step 3: Cross multiply
    782,394.96x = 1,079,730.72 × 442,855.92
  4. Step 4: Simplify right side
    782,394.96x = 478,165,141,357.86
  5. Step 5: Solve for x
    x = 478,165,141,357.86/782,394.96
  6. Step 6: Final answer
    x = 611,155.70

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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.