Home / 1,073,172.59-1,480,655.21-643,295.87

Finding the Fourth Proportional to 1,073,172.59, 1,480,655.21 and 643,295.87

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Solution

The fourth proportional to 1,073,172.59, 1,480,655.21 and 643,295.87 is: 887,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,172.59 : 1,480,655.21 = 643,295.87 : x
  2. Step 2: Convert to fraction form
    1,073,172.59/1,480,655.21 = 643,295.87/x
  3. Step 3: Cross multiply
    1,073,172.59x = 1,480,655.21 × 643,295.87
  4. Step 4: Simplify right side
    1,073,172.59x = 952,499,381,486.98
  5. Step 5: Solve for x
    x = 952,499,381,486.98/1,073,172.59
  6. Step 6: Final answer
    x = 887,554.70

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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.