Home / 1,320,543.30-1,975,566.15-1,145,000.10

Finding the Fourth Proportional to 1,320,543.30, 1,975,566.15 and 1,145,000.10

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Solution

The fourth proportional to 1,320,543.30, 1,975,566.15 and 1,145,000.10 is: 1,712,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,543.30 : 1,975,566.15 = 1,145,000.10 : x
  2. Step 2: Convert to fraction form
    1,320,543.30/1,975,566.15 = 1,145,000.10/x
  3. Step 3: Cross multiply
    1,320,543.30x = 1,975,566.15 × 1,145,000.10
  4. Step 4: Simplify right side
    1,320,543.30x = 2,262,023,439,306.62
  5. Step 5: Solve for x
    x = 2,262,023,439,306.62/1,320,543.30
  6. Step 6: Final answer
    x = 1,712,949.09

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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.