Home / 991,371.24-1,485,061.02-458,157.96

Finding the Fourth Proportional to 991,371.24, 1,485,061.02 and 458,157.96

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Solution

The fourth proportional to 991,371.24, 1,485,061.02 and 458,157.96 is: 686,314.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,371.24 : 1,485,061.02 = 458,157.96 : x
  2. Step 2: Convert to fraction form
    991,371.24/1,485,061.02 = 458,157.96/x
  3. Step 3: Cross multiply
    991,371.24x = 1,485,061.02 × 458,157.96
  4. Step 4: Simplify right side
    991,371.24x = 680,392,527,398.72
  5. Step 5: Solve for x
    x = 680,392,527,398.72/991,371.24
  6. Step 6: Final answer
    x = 686,314.57

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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.