Home / 781,720.29-1,172,752.56-444,919.46

Finding the Fourth Proportional to 781,720.29, 1,172,752.56 and 444,919.46

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Solution

The fourth proportional to 781,720.29, 1,172,752.56 and 444,919.46 is: 667,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,720.29 : 1,172,752.56 = 444,919.46 : x
  2. Step 2: Convert to fraction form
    781,720.29/1,172,752.56 = 444,919.46/x
  3. Step 3: Cross multiply
    781,720.29x = 1,172,752.56 × 444,919.46
  4. Step 4: Simplify right side
    781,720.29x = 521,780,429,845.06
  5. Step 5: Solve for x
    x = 521,780,429,845.06/781,720.29
  6. Step 6: Final answer
    x = 667,477.15

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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.