Home / 1,264,400.10-1,896,600.15-665,129.70

Finding the Fourth Proportional to 1,264,400.10, 1,896,600.15 and 665,129.70

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Solution

The fourth proportional to 1,264,400.10, 1,896,600.15 and 665,129.70 is: 997,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,400.10 : 1,896,600.15 = 665,129.70 : x
  2. Step 2: Convert to fraction form
    1,264,400.10/1,896,600.15 = 665,129.70/x
  3. Step 3: Cross multiply
    1,264,400.10x = 1,896,600.15 × 665,129.70
  4. Step 4: Simplify right side
    1,264,400.10x = 1,261,485,088,789.45
  5. Step 5: Solve for x
    x = 1,261,485,088,789.45/1,264,400.10
  6. Step 6: Final answer
    x = 997,694.55

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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.