Home / 739,763.12-1,020,872.76-417,540.80

Finding the Fourth Proportional to 739,763.12, 1,020,872.76 and 417,540.80

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Solution

The fourth proportional to 739,763.12, 1,020,872.76 and 417,540.80 is: 576,206.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,763.12 : 1,020,872.76 = 417,540.80 : x
  2. Step 2: Convert to fraction form
    739,763.12/1,020,872.76 = 417,540.80/x
  3. Step 3: Cross multiply
    739,763.12x = 1,020,872.76 × 417,540.80
  4. Step 4: Simplify right side
    739,763.12x = 426,256,028,908.61
  5. Step 5: Solve for x
    x = 426,256,028,908.61/739,763.12
  6. Step 6: Final answer
    x = 576,206.11

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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.