Home / 687,951.30-1,031,878.35-238,563.30

Finding the Fourth Proportional to 687,951.30, 1,031,878.35 and 238,563.30

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Solution

The fourth proportional to 687,951.30, 1,031,878.35 and 238,563.30 is: 357,828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,951.30 : 1,031,878.35 = 238,563.30 : x
  2. Step 2: Convert to fraction form
    687,951.30/1,031,878.35 = 238,563.30/x
  3. Step 3: Cross multiply
    687,951.30x = 1,031,878.35 × 238,563.30
  4. Step 4: Simplify right side
    687,951.30x = 246,168,304,374.56
  5. Step 5: Solve for x
    x = 246,168,304,374.56/687,951.30
  6. Step 6: Final answer
    x = 357,828.10

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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.