Home / 688,675.40-1,033,013.10-487,908.80

Finding the Fourth Proportional to 688,675.40, 1,033,013.10 and 487,908.80

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Solution

The fourth proportional to 688,675.40, 1,033,013.10 and 487,908.80 is: 731,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,675.40 : 1,033,013.10 = 487,908.80 : x
  2. Step 2: Convert to fraction form
    688,675.40/1,033,013.10 = 487,908.80/x
  3. Step 3: Cross multiply
    688,675.40x = 1,033,013.10 × 487,908.80
  4. Step 4: Simplify right side
    688,675.40x = 504,016,182,005.28
  5. Step 5: Solve for x
    x = 504,016,182,005.28/688,675.40
  6. Step 6: Final answer
    x = 731,863.20

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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.