Home / 1,264,387.60-1,896,581.40-665,117.20

Finding the Fourth Proportional to 1,264,387.60, 1,896,581.40 and 665,117.20

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Solution

The fourth proportional to 1,264,387.60, 1,896,581.40 and 665,117.20 is: 997,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,387.60 : 1,896,581.40 = 665,117.20 : x
  2. Step 2: Convert to fraction form
    1,264,387.60/1,896,581.40 = 665,117.20/x
  3. Step 3: Cross multiply
    1,264,387.60x = 1,896,581.40 × 665,117.20
  4. Step 4: Simplify right side
    1,264,387.60x = 1,261,448,910,340.08
  5. Step 5: Solve for x
    x = 1,261,448,910,340.08/1,264,387.60
  6. Step 6: Final answer
    x = 997,675.80

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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.