Home / 1,073,172.62-1,480,655.27-643,295.90

Finding the Fourth Proportional to 1,073,172.62, 1,480,655.27 and 643,295.90

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Solution

The fourth proportional to 1,073,172.62, 1,480,655.27 and 643,295.90 is: 887,554.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,172.62 : 1,480,655.27 = 643,295.90 : x
  2. Step 2: Convert to fraction form
    1,073,172.62/1,480,655.27 = 643,295.90/x
  3. Step 3: Cross multiply
    1,073,172.62x = 1,480,655.27 × 643,295.90
  4. Step 4: Simplify right side
    1,073,172.62x = 952,499,464,989.55
  5. Step 5: Solve for x
    x = 952,499,464,989.55/1,073,172.62
  6. Step 6: Final answer
    x = 887,554.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.