Home / 779,631.60-1,169,836.20-442,930.80

Finding the Fourth Proportional to 779,631.60, 1,169,836.20 and 442,930.80

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Solution

The fourth proportional to 779,631.60, 1,169,836.20 and 442,930.80 is: 664,617.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,631.60 : 1,169,836.20 = 442,930.80 : x
  2. Step 2: Convert to fraction form
    779,631.60/1,169,836.20 = 442,930.80/x
  3. Step 3: Cross multiply
    779,631.60x = 1,169,836.20 × 442,930.80
  4. Step 4: Simplify right side
    779,631.60x = 518,156,483,934.96
  5. Step 5: Solve for x
    x = 518,156,483,934.96/779,631.60
  6. Step 6: Final answer
    x = 664,617.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.