Home / 1,076,721.80-1,615,082.70-908,760.20

Finding the Fourth Proportional to 1,076,721.80, 1,615,082.70 and 908,760.20

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Solution

The fourth proportional to 1,076,721.80, 1,615,082.70 and 908,760.20 is: 1,363,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,721.80 : 1,615,082.70 = 908,760.20 : x
  2. Step 2: Convert to fraction form
    1,076,721.80/1,615,082.70 = 908,760.20/x
  3. Step 3: Cross multiply
    1,076,721.80x = 1,615,082.70 × 908,760.20
  4. Step 4: Simplify right side
    1,076,721.80x = 1,467,722,877,468.54
  5. Step 5: Solve for x
    x = 1,467,722,877,468.54/1,076,721.80
  6. Step 6: Final answer
    x = 1,363,140.30

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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.