Home / 739,129.70-1,107,929.10-401,456.90

Finding the Fourth Proportional to 739,129.70, 1,107,929.10 and 401,456.90

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Solution

The fourth proportional to 739,129.70, 1,107,929.10 and 401,456.90 is: 601,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,129.70 : 1,107,929.10 = 401,456.90 : x
  2. Step 2: Convert to fraction form
    739,129.70/1,107,929.10 = 401,456.90/x
  3. Step 3: Cross multiply
    739,129.70x = 1,107,929.10 × 401,456.90
  4. Step 4: Simplify right side
    739,129.70x = 444,785,781,905.79
  5. Step 5: Solve for x
    x = 444,785,781,905.79/739,129.70
  6. Step 6: Final answer
    x = 601,769.60

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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.