Home / 820,851.60-1,231,277.40-288,317.10

Finding the Fourth Proportional to 820,851.60, 1,231,277.40 and 288,317.10

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Solution

The fourth proportional to 820,851.60, 1,231,277.40 and 288,317.10 is: 432,475.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,851.60 : 1,231,277.40 = 288,317.10 : x
  2. Step 2: Convert to fraction form
    820,851.60/1,231,277.40 = 288,317.10/x
  3. Step 3: Cross multiply
    820,851.60x = 1,231,277.40 × 288,317.10
  4. Step 4: Simplify right side
    820,851.60x = 354,998,329,263.54
  5. Step 5: Solve for x
    x = 354,998,329,263.54/820,851.60
  6. Step 6: Final answer
    x = 432,475.65

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Similar ratio
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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.