Home / 487,896.20-731,844.30-239,064.20

Finding the Fourth Proportional to 487,896.20, 731,844.30 and 239,064.20

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Solution

The fourth proportional to 487,896.20, 731,844.30 and 239,064.20 is: 358,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,896.20 : 731,844.30 = 239,064.20 : x
  2. Step 2: Convert to fraction form
    487,896.20/731,844.30 = 239,064.20/x
  3. Step 3: Cross multiply
    487,896.20x = 731,844.30 × 239,064.20
  4. Step 4: Simplify right side
    487,896.20x = 174,957,772,104.06
  5. Step 5: Solve for x
    x = 174,957,772,104.06/487,896.20
  6. Step 6: Final answer
    x = 358,596.30

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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.