Home / 487,922.20-731,883.30-239,090.20

Finding the Fourth Proportional to 487,922.20, 731,883.30 and 239,090.20

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Solution

The fourth proportional to 487,922.20, 731,883.30 and 239,090.20 is: 358,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,922.20 : 731,883.30 = 239,090.20 : x
  2. Step 2: Convert to fraction form
    487,922.20/731,883.30 = 239,090.20/x
  3. Step 3: Cross multiply
    487,922.20x = 731,883.30 × 239,090.20
  4. Step 4: Simplify right side
    487,922.20x = 174,986,124,573.66
  5. Step 5: Solve for x
    x = 174,986,124,573.66/487,922.20
  6. Step 6: Final answer
    x = 358,635.30

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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.