Home / 1,151,816.40-1,727,708.40-520,729.20

Finding the Fourth Proportional to 1,151,816.40, 1,727,708.40 and 520,729.20

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Solution

The fourth proportional to 1,151,816.40, 1,727,708.40 and 520,729.20 is: 781,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,816.40 : 1,727,708.40 = 520,729.20 : x
  2. Step 2: Convert to fraction form
    1,151,816.40/1,727,708.40 = 520,729.20/x
  3. Step 3: Cross multiply
    1,151,816.40x = 1,727,708.40 × 520,729.20
  4. Step 4: Simplify right side
    1,151,816.40x = 899,668,212,965.28
  5. Step 5: Solve for x
    x = 899,668,212,965.28/1,151,816.40
  6. Step 6: Final answer
    x = 781,086.48

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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.