Home / 987,215.57-1,480,823.35-239,261.57

Finding the Fourth Proportional to 987,215.57, 1,480,823.35 and 239,261.57

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Solution

The fourth proportional to 987,215.57, 1,480,823.35 and 239,261.57 is: 358,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,215.57 : 1,480,823.35 = 239,261.57 : x
  2. Step 2: Convert to fraction form
    987,215.57/1,480,823.35 = 239,261.57/x
  3. Step 3: Cross multiply
    987,215.57x = 1,480,823.35 × 239,261.57
  4. Step 4: Simplify right side
    987,215.57x = 354,304,111,013.24
  5. Step 5: Solve for x
    x = 354,304,111,013.24/987,215.57
  6. Step 6: Final answer
    x = 358,892.35

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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.