Home / 987,298.88-1,480,948.31-239,344.88

Finding the Fourth Proportional to 987,298.88, 1,480,948.31 and 239,344.88

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Solution

The fourth proportional to 987,298.88, 1,480,948.31 and 239,344.88 is: 359,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,298.88 : 1,480,948.31 = 239,344.88 : x
  2. Step 2: Convert to fraction form
    987,298.88/1,480,948.31 = 239,344.88/x
  3. Step 3: Cross multiply
    987,298.88x = 1,480,948.31 × 239,344.88
  4. Step 4: Simplify right side
    987,298.88x = 354,457,388,736.77
  5. Step 5: Solve for x
    x = 354,457,388,736.77/987,298.88
  6. Step 6: Final answer
    x = 359,017.31

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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.