Home / 725,687.46-1,088,389.02-689,681.34

Finding the Fourth Proportional to 725,687.46, 1,088,389.02 and 689,681.34

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Solution

The fourth proportional to 725,687.46, 1,088,389.02 and 689,681.34 is: 1,034,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,687.46 : 1,088,389.02 = 689,681.34 : x
  2. Step 2: Convert to fraction form
    725,687.46/1,088,389.02 = 689,681.34/x
  3. Step 3: Cross multiply
    725,687.46x = 1,088,389.02 × 689,681.34
  4. Step 4: Simplify right side
    725,687.46x = 750,641,597,754.89
  5. Step 5: Solve for x
    x = 750,641,597,754.89/725,687.46
  6. Step 6: Final answer
    x = 1,034,386.89

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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.