Home / 1,375,165.60-2,063,266.80-665,821.60

Finding the Fourth Proportional to 1,375,165.60, 2,063,266.80 and 665,821.60

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Solution

The fourth proportional to 1,375,165.60, 2,063,266.80 and 665,821.60 is: 998,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,165.60 : 2,063,266.80 = 665,821.60 : x
  2. Step 2: Convert to fraction form
    1,375,165.60/2,063,266.80 = 665,821.60/x
  3. Step 3: Cross multiply
    1,375,165.60x = 2,063,266.80 × 665,821.60
  4. Step 4: Simplify right side
    1,375,165.60x = 1,373,767,602,002.88
  5. Step 5: Solve for x
    x = 1,373,767,602,002.88/1,375,165.60
  6. Step 6: Final answer
    x = 998,983.40

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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.