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Finding the Fourth Proportional to 808,059.60, 1,213,401.60 and 542,995.20

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Solution

The fourth proportional to 808,059.60, 1,213,401.60 and 542,995.20 is: 815,374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,059.60 : 1,213,401.60 = 542,995.20 : x
  2. Step 2: Convert to fraction form
    808,059.60/1,213,401.60 = 542,995.20/x
  3. Step 3: Cross multiply
    808,059.60x = 1,213,401.60 × 542,995.20
  4. Step 4: Simplify right side
    808,059.60x = 658,871,244,472.32
  5. Step 5: Solve for x
    x = 658,871,244,472.32/808,059.60
  6. Step 6: Final answer
    x = 815,374.56

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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.