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Finding the Fourth Proportional to 580,445.56, 871,004.48 and 243,456.20

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Solution

The fourth proportional to 580,445.56, 871,004.48 and 243,456.20 is: 365,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,445.56 : 871,004.48 = 243,456.20 : x
  2. Step 2: Convert to fraction form
    580,445.56/871,004.48 = 243,456.20/x
  3. Step 3: Cross multiply
    580,445.56x = 871,004.48 × 243,456.20
  4. Step 4: Simplify right side
    580,445.56x = 212,051,440,883.78
  5. Step 5: Solve for x
    x = 212,051,440,883.78/580,445.56
  6. Step 6: Final answer
    x = 365,325.29

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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.