Home / 772,731.80-1,157,715.30-662,139.80

Finding the Fourth Proportional to 772,731.80, 1,157,715.30 and 662,139.80

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Solution

The fourth proportional to 772,731.80, 1,157,715.30 and 662,139.80 is: 992,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,731.80 : 1,157,715.30 = 662,139.80 : x
  2. Step 2: Convert to fraction form
    772,731.80/1,157,715.30 = 662,139.80/x
  3. Step 3: Cross multiply
    772,731.80x = 1,157,715.30 × 662,139.80
  4. Step 4: Simplify right side
    772,731.80x = 766,569,377,198.94
  5. Step 5: Solve for x
    x = 766,569,377,198.94/772,731.80
  6. Step 6: Final answer
    x = 992,025.15

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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.