Home / 1,118,724.16-1,676,784.28-639,288.04

Finding the Fourth Proportional to 1,118,724.16, 1,676,784.28 and 639,288.04

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Solution

The fourth proportional to 1,118,724.16, 1,676,784.28 and 639,288.04 is: 958,188.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,724.16 : 1,676,784.28 = 639,288.04 : x
  2. Step 2: Convert to fraction form
    1,118,724.16/1,676,784.28 = 639,288.04/x
  3. Step 3: Cross multiply
    1,118,724.16x = 1,676,784.28 × 639,288.04
  4. Step 4: Simplify right side
    1,118,724.16x = 1,071,948,135,864.01
  5. Step 5: Solve for x
    x = 1,071,948,135,864.01/1,118,724.16
  6. Step 6: Final answer
    x = 958,188.06

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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.