Home / 972,200.80-1,458,301.20-499,808.80

Finding the Fourth Proportional to 972,200.80, 1,458,301.20 and 499,808.80

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Solution

The fourth proportional to 972,200.80, 1,458,301.20 and 499,808.80 is: 749,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,200.80 : 1,458,301.20 = 499,808.80 : x
  2. Step 2: Convert to fraction form
    972,200.80/1,458,301.20 = 499,808.80/x
  3. Step 3: Cross multiply
    972,200.80x = 1,458,301.20 × 499,808.80
  4. Step 4: Simplify right side
    972,200.80x = 728,871,772,810.56
  5. Step 5: Solve for x
    x = 728,871,772,810.56/972,200.80
  6. Step 6: Final answer
    x = 749,713.20

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Double scale
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Similar ratio
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1.5x scale

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.