Home / 1,240,729.80-1,861,440.30-609,664.20

Finding the Fourth Proportional to 1,240,729.80, 1,861,440.30 and 609,664.20

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Solution

The fourth proportional to 1,240,729.80, 1,861,440.30 and 609,664.20 is: 914,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,729.80 : 1,861,440.30 = 609,664.20 : x
  2. Step 2: Convert to fraction form
    1,240,729.80/1,861,440.30 = 609,664.20/x
  3. Step 3: Cross multiply
    1,240,729.80x = 1,861,440.30 × 609,664.20
  4. Step 4: Simplify right side
    1,240,729.80x = 1,134,853,511,347.26
  5. Step 5: Solve for x
    x = 1,134,853,511,347.26/1,240,729.80
  6. Step 6: Final answer
    x = 914,666.12

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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.