Home / 672,045.40-1,008,490.02-272,687.80

Finding the Fourth Proportional to 672,045.40, 1,008,490.02 and 272,687.80

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Solution

The fourth proportional to 672,045.40, 1,008,490.02 and 272,687.80 is: 409,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,045.40 : 1,008,490.02 = 272,687.80 : x
  2. Step 2: Convert to fraction form
    672,045.40/1,008,490.02 = 272,687.80/x
  3. Step 3: Cross multiply
    672,045.40x = 1,008,490.02 × 272,687.80
  4. Step 4: Simplify right side
    672,045.40x = 275,002,924,875.76
  5. Step 5: Solve for x
    x = 275,002,924,875.76/672,045.40
  6. Step 6: Final answer
    x = 409,202.90

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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.