Home / 746,029.60-1,120,210.80-431,101.60

Finding the Fourth Proportional to 746,029.60, 1,120,210.80 and 431,101.60

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Solution

The fourth proportional to 746,029.60, 1,120,210.80 and 431,101.60 is: 647,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,029.60 : 1,120,210.80 = 431,101.60 : x
  2. Step 2: Convert to fraction form
    746,029.60/1,120,210.80 = 431,101.60/x
  3. Step 3: Cross multiply
    746,029.60x = 1,120,210.80 × 431,101.60
  4. Step 4: Simplify right side
    746,029.60x = 482,924,668,217.28
  5. Step 5: Solve for x
    x = 482,924,668,217.28/746,029.60
  6. Step 6: Final answer
    x = 647,326.42

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1.5x scale

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.