Home / 1,209,185.64-1,668,500.10-725,648.04

Finding the Fourth Proportional to 1,209,185.64, 1,668,500.10 and 725,648.04

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Solution

The fourth proportional to 1,209,185.64, 1,668,500.10 and 725,648.04 is: 1,001,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,185.64 : 1,668,500.10 = 725,648.04 : x
  2. Step 2: Convert to fraction form
    1,209,185.64/1,668,500.10 = 725,648.04/x
  3. Step 3: Cross multiply
    1,209,185.64x = 1,668,500.10 × 725,648.04
  4. Step 4: Simplify right side
    1,209,185.64x = 1,210,743,827,304.80
  5. Step 5: Solve for x
    x = 1,210,743,827,304.80/1,209,185.64
  6. Step 6: Final answer
    x = 1,001,288.63

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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.