Home / 871,540.40-1,307,310.60-555,057.20

Finding the Fourth Proportional to 871,540.40, 1,307,310.60 and 555,057.20

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Solution

The fourth proportional to 871,540.40, 1,307,310.60 and 555,057.20 is: 832,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,540.40 : 1,307,310.60 = 555,057.20 : x
  2. Step 2: Convert to fraction form
    871,540.40/1,307,310.60 = 555,057.20/x
  3. Step 3: Cross multiply
    871,540.40x = 1,307,310.60 × 555,057.20
  4. Step 4: Simplify right side
    871,540.40x = 725,632,161,166.32
  5. Step 5: Solve for x
    x = 725,632,161,166.32/871,540.40
  6. Step 6: Final answer
    x = 832,585.80

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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.