Home / 1,039,987.89-1,558,836.90-680,010.30

Finding the Fourth Proportional to 1,039,987.89, 1,558,836.90 and 680,010.30

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Solution

The fourth proportional to 1,039,987.89, 1,558,836.90 and 680,010.30 is: 1,019,266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,987.89 : 1,558,836.90 = 680,010.30 : x
  2. Step 2: Convert to fraction form
    1,039,987.89/1,558,836.90 = 680,010.30/x
  3. Step 3: Cross multiply
    1,039,987.89x = 1,558,836.90 × 680,010.30
  4. Step 4: Simplify right side
    1,039,987.89x = 1,060,025,148,020.07
  5. Step 5: Solve for x
    x = 1,060,025,148,020.07/1,039,987.89
  6. Step 6: Final answer
    x = 1,019,266.82

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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.