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Finding the Fourth Proportional to 1,264,987.02, 1,895,709.02 and 665,049.18

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Solution

The fourth proportional to 1,264,987.02, 1,895,709.02 and 665,049.18 is: 996,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,987.02 : 1,895,709.02 = 665,049.18 : x
  2. Step 2: Convert to fraction form
    1,264,987.02/1,895,709.02 = 665,049.18/x
  3. Step 3: Cross multiply
    1,264,987.02x = 1,895,709.02 × 665,049.18
  4. Step 4: Simplify right side
    1,264,987.02x = 1,260,739,729,269.60
  5. Step 5: Solve for x
    x = 1,260,739,729,269.60/1,264,987.02
  6. Step 6: Final answer
    x = 996,642.42

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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.