Home / 778,519.60-1,167,236.04-398,702.32

Finding the Fourth Proportional to 778,519.60, 1,167,236.04 and 398,702.32

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Solution

The fourth proportional to 778,519.60, 1,167,236.04 and 398,702.32 is: 597,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,519.60 : 1,167,236.04 = 398,702.32 : x
  2. Step 2: Convert to fraction form
    778,519.60/1,167,236.04 = 398,702.32/x
  3. Step 3: Cross multiply
    778,519.60x = 1,167,236.04 × 398,702.32
  4. Step 4: Simplify right side
    778,519.60x = 465,379,717,135.61
  5. Step 5: Solve for x
    x = 465,379,717,135.61/778,519.60
  6. Step 6: Final answer
    x = 597,775.21

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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.