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Finding the Fourth Proportional to 1,187,865.76, 1,782,731.76 and 655,754.08

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Solution

The fourth proportional to 1,187,865.76, 1,782,731.76 and 655,754.08 is: 984,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,865.76 : 1,782,731.76 = 655,754.08 : x
  2. Step 2: Convert to fraction form
    1,187,865.76/1,782,731.76 = 655,754.08/x
  3. Step 3: Cross multiply
    1,187,865.76x = 1,782,731.76 × 655,754.08
  4. Step 4: Simplify right side
    1,187,865.76x = 1,169,033,625,165.58
  5. Step 5: Solve for x
    x = 1,169,033,625,165.58/1,187,865.76
  6. Step 6: Final answer
    x = 984,146.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.