Home / 739,631.92-1,020,691.02-400,100.44

Finding the Fourth Proportional to 739,631.92, 1,020,691.02 and 400,100.44

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Solution

The fourth proportional to 739,631.92, 1,020,691.02 and 400,100.44 is: 552,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,631.92 : 1,020,691.02 = 400,100.44 : x
  2. Step 2: Convert to fraction form
    739,631.92/1,020,691.02 = 400,100.44/x
  3. Step 3: Cross multiply
    739,631.92x = 1,020,691.02 × 400,100.44
  4. Step 4: Simplify right side
    739,631.92x = 408,378,926,206.05
  5. Step 5: Solve for x
    x = 408,378,926,206.05/739,631.92
  6. Step 6: Final answer
    x = 552,138.05

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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.