Home / 889,748.40-1,331,512.20-815,098.80

Finding the Fourth Proportional to 889,748.40, 1,331,512.20 and 815,098.80

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Solution

The fourth proportional to 889,748.40, 1,331,512.20 and 815,098.80 is: 1,219,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,748.40 : 1,331,512.20 = 815,098.80 : x
  2. Step 2: Convert to fraction form
    889,748.40/1,331,512.20 = 815,098.80/x
  3. Step 3: Cross multiply
    889,748.40x = 1,331,512.20 × 815,098.80
  4. Step 4: Simplify right side
    889,748.40x = 1,085,313,996,405.36
  5. Step 5: Solve for x
    x = 1,085,313,996,405.36/889,748.40
  6. Step 6: Final answer
    x = 1,219,798.76

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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.