Home / 1,253,743.76-1,880,885.68-389,160.70

Finding the Fourth Proportional to 1,253,743.76, 1,880,885.68 and 389,160.70

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Solution

The fourth proportional to 1,253,743.76, 1,880,885.68 and 389,160.70 is: 583,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,743.76 : 1,880,885.68 = 389,160.70 : x
  2. Step 2: Convert to fraction form
    1,253,743.76/1,880,885.68 = 389,160.70/x
  3. Step 3: Cross multiply
    1,253,743.76x = 1,880,885.68 × 389,160.70
  4. Step 4: Simplify right side
    1,253,743.76x = 731,966,782,173.66
  5. Step 5: Solve for x
    x = 731,966,782,173.66/1,253,743.76
  6. Step 6: Final answer
    x = 583,824.86

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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.