Home / 739,772.70-1,110,177.45-319,350.30

Finding the Fourth Proportional to 739,772.70, 1,110,177.45 and 319,350.30

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Solution

The fourth proportional to 739,772.70, 1,110,177.45 and 319,350.30 is: 479,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,772.70 : 1,110,177.45 = 319,350.30 : x
  2. Step 2: Convert to fraction form
    739,772.70/1,110,177.45 = 319,350.30/x
  3. Step 3: Cross multiply
    739,772.70x = 1,110,177.45 × 319,350.30
  4. Step 4: Simplify right side
    739,772.70x = 354,535,501,710.74
  5. Step 5: Solve for x
    x = 354,535,501,710.74/739,772.70
  6. Step 6: Final answer
    x = 479,249.24

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Half scale
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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.