Home / 1,240,151.64-1,711,580.40-688,990.92

Finding the Fourth Proportional to 1,240,151.64, 1,711,580.40 and 688,990.92

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Solution

The fourth proportional to 1,240,151.64, 1,711,580.40 and 688,990.92 is: 950,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,151.64 : 1,711,580.40 = 688,990.92 : x
  2. Step 2: Convert to fraction form
    1,240,151.64/1,711,580.40 = 688,990.92/x
  3. Step 3: Cross multiply
    1,240,151.64x = 1,711,580.40 × 688,990.92
  4. Step 4: Simplify right side
    1,240,151.64x = 1,179,263,354,449.97
  5. Step 5: Solve for x
    x = 1,179,263,354,449.97/1,240,151.64
  6. Step 6: Final answer
    x = 950,902.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.