Home / 991,629.28-1,487,549.58-317,469.52

Finding the Fourth Proportional to 991,629.28, 1,487,549.58 and 317,469.52

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Solution

The fourth proportional to 991,629.28, 1,487,549.58 and 317,469.52 is: 476,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,629.28 : 1,487,549.58 = 317,469.52 : x
  2. Step 2: Convert to fraction form
    991,629.28/1,487,549.58 = 317,469.52/x
  3. Step 3: Cross multiply
    991,629.28x = 1,487,549.58 × 317,469.52
  4. Step 4: Simplify right side
    991,629.28x = 472,251,651,138.80
  5. Step 5: Solve for x
    x = 472,251,651,138.80/991,629.28
  6. Step 6: Final answer
    x = 476,238.11

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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.