Home / 739,110.30-1,108,665.45-319,206.30

Finding the Fourth Proportional to 739,110.30, 1,108,665.45 and 319,206.30

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Solution

The fourth proportional to 739,110.30, 1,108,665.45 and 319,206.30 is: 478,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,110.30 : 1,108,665.45 = 319,206.30 : x
  2. Step 2: Convert to fraction form
    739,110.30/1,108,665.45 = 319,206.30/x
  3. Step 3: Cross multiply
    739,110.30x = 1,108,665.45 × 319,206.30
  4. Step 4: Simplify right side
    739,110.30x = 353,892,996,232.34
  5. Step 5: Solve for x
    x = 353,892,996,232.34/739,110.30
  6. Step 6: Final answer
    x = 478,809.45

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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.