Home / 985,371.20-1,359,858.92-555,642.10

Finding the Fourth Proportional to 985,371.20, 1,359,858.92 and 555,642.10

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Solution

The fourth proportional to 985,371.20, 1,359,858.92 and 555,642.10 is: 766,812.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,371.20 : 1,359,858.92 = 555,642.10 : x
  2. Step 2: Convert to fraction form
    985,371.20/1,359,858.92 = 555,642.10/x
  3. Step 3: Cross multiply
    985,371.20x = 1,359,858.92 × 555,642.10
  4. Step 4: Simplify right side
    985,371.20x = 755,594,866,012.53
  5. Step 5: Solve for x
    x = 755,594,866,012.53/985,371.20
  6. Step 6: Final answer
    x = 766,812.41

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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.