Home / 739,853.10-1,020,621.14-449,387.38

Finding the Fourth Proportional to 739,853.10, 1,020,621.14 and 449,387.38

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Solution

The fourth proportional to 739,853.10, 1,020,621.14 and 449,387.38 is: 619,926.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,853.10 : 1,020,621.14 = 449,387.38 : x
  2. Step 2: Convert to fraction form
    739,853.10/1,020,621.14 = 449,387.38/x
  3. Step 3: Cross multiply
    739,853.10x = 1,020,621.14 × 449,387.38
  4. Step 4: Simplify right side
    739,853.10x = 458,654,260,077.21
  5. Step 5: Solve for x
    x = 458,654,260,077.21/739,853.10
  6. Step 6: Final answer
    x = 619,926.12

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.