Home / 775,344.56-1,163,017.10-319,929.15

Finding the Fourth Proportional to 775,344.56, 1,163,017.10 and 319,929.15

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Solution

The fourth proportional to 775,344.56, 1,163,017.10 and 319,929.15 is: 479,893.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,344.56 : 1,163,017.10 = 319,929.15 : x
  2. Step 2: Convert to fraction form
    775,344.56/1,163,017.10 = 319,929.15/x
  3. Step 3: Cross multiply
    775,344.56x = 1,163,017.10 × 319,929.15
  4. Step 4: Simplify right side
    775,344.56x = 372,083,070,638.82
  5. Step 5: Solve for x
    x = 372,083,070,638.82/775,344.56
  6. Step 6: Final answer
    x = 479,893.83

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Double scale
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Similar ratio
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1.5x scale

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.