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Finding the Fourth Proportional to 581,493.60, 871,657.20 and 266,176.80

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Solution

The fourth proportional to 581,493.60, 871,657.20 and 266,176.80 is: 398,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,493.60 : 871,657.20 = 266,176.80 : x
  2. Step 2: Convert to fraction form
    581,493.60/871,657.20 = 266,176.80/x
  3. Step 3: Cross multiply
    581,493.60x = 871,657.20 × 266,176.80
  4. Step 4: Simplify right side
    581,493.60x = 232,014,924,192.96
  5. Step 5: Solve for x
    x = 232,014,924,192.96/581,493.60
  6. Step 6: Final answer
    x = 398,998.24

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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.