Home / 1,126,724.46-1,554,727.59-643,258.86

Finding the Fourth Proportional to 1,126,724.46, 1,554,727.59 and 643,258.86

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Solution

The fourth proportional to 1,126,724.46, 1,554,727.59 and 643,258.86 is: 887,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,724.46 : 1,554,727.59 = 643,258.86 : x
  2. Step 2: Convert to fraction form
    1,126,724.46/1,554,727.59 = 643,258.86/x
  3. Step 3: Cross multiply
    1,126,724.46x = 1,554,727.59 × 643,258.86
  4. Step 4: Simplify right side
    1,126,724.46x = 1,000,092,297,153.95
  5. Step 5: Solve for x
    x = 1,000,092,297,153.95/1,126,724.46
  6. Step 6: Final answer
    x = 887,610.35

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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.