Home / 787,570.47-1,181,986.28-408,599.82

Finding the Fourth Proportional to 787,570.47, 1,181,986.28 and 408,599.82

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Solution

The fourth proportional to 787,570.47, 1,181,986.28 and 408,599.82 is: 613,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,570.47 : 1,181,986.28 = 408,599.82 : x
  2. Step 2: Convert to fraction form
    787,570.47/1,181,986.28 = 408,599.82/x
  3. Step 3: Cross multiply
    787,570.47x = 1,181,986.28 × 408,599.82
  4. Step 4: Simplify right side
    787,570.47x = 482,959,376,362.04
  5. Step 5: Solve for x
    x = 482,959,376,362.04/787,570.47
  6. Step 6: Final answer
    x = 613,226.88

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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.