Home / 772,885.98-1,159,662.69-418,149.72

Finding the Fourth Proportional to 772,885.98, 1,159,662.69 and 418,149.72

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Solution

The fourth proportional to 772,885.98, 1,159,662.69 and 418,149.72 is: 627,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,885.98 : 1,159,662.69 = 418,149.72 : x
  2. Step 2: Convert to fraction form
    772,885.98/1,159,662.69 = 418,149.72/x
  3. Step 3: Cross multiply
    772,885.98x = 1,159,662.69 × 418,149.72
  4. Step 4: Simplify right side
    772,885.98x = 484,912,629,117.95
  5. Step 5: Solve for x
    x = 484,912,629,117.95/772,885.98
  6. Step 6: Final answer
    x = 627,405.13

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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.