Home / 1,078,957.45-1,488,047.11-649,157.28

Finding the Fourth Proportional to 1,078,957.45, 1,488,047.11 and 649,157.28

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Solution

The fourth proportional to 1,078,957.45, 1,488,047.11 and 649,157.28 is: 895,287.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,957.45 : 1,488,047.11 = 649,157.28 : x
  2. Step 2: Convert to fraction form
    1,078,957.45/1,488,047.11 = 649,157.28/x
  3. Step 3: Cross multiply
    1,078,957.45x = 1,488,047.11 × 649,157.28
  4. Step 4: Simplify right side
    1,078,957.45x = 965,976,614,439.46
  5. Step 5: Solve for x
    x = 965,976,614,439.46/1,078,957.45
  6. Step 6: Final answer
    x = 895,287.03

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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.