Home / 861,548.92-1,293,121.28-435,384.63

Finding the Fourth Proportional to 861,548.92, 1,293,121.28 and 435,384.63

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Solution

The fourth proportional to 861,548.92, 1,293,121.28 and 435,384.63 is: 653,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,548.92 : 1,293,121.28 = 435,384.63 : x
  2. Step 2: Convert to fraction form
    861,548.92/1,293,121.28 = 435,384.63/x
  3. Step 3: Cross multiply
    861,548.92x = 1,293,121.28 × 435,384.63
  4. Step 4: Simplify right side
    861,548.92x = 563,005,131,126.39
  5. Step 5: Solve for x
    x = 563,005,131,126.39/861,548.92
  6. Step 6: Final answer
    x = 653,480.17

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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.