Home / 739,507.20-1,109,779.20-319,084.80

Finding the Fourth Proportional to 739,507.20, 1,109,779.20 and 319,084.80

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Solution

The fourth proportional to 739,507.20, 1,109,779.20 and 319,084.80 is: 478,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,507.20 : 1,109,779.20 = 319,084.80 : x
  2. Step 2: Convert to fraction form
    739,507.20/1,109,779.20 = 319,084.80/x
  3. Step 3: Cross multiply
    739,507.20x = 1,109,779.20 × 319,084.80
  4. Step 4: Simplify right side
    739,507.20x = 354,113,674,076.16
  5. Step 5: Solve for x
    x = 354,113,674,076.16/739,507.20
  6. Step 6: Final answer
    x = 478,850.88

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Double scale
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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.