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Finding the Fourth Proportional to 577,903.60, 866,272.20 and 262,586.80

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Solution

The fourth proportional to 577,903.60, 866,272.20 and 262,586.80 is: 393,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,903.60 : 866,272.20 = 262,586.80 : x
  2. Step 2: Convert to fraction form
    577,903.60/866,272.20 = 262,586.80/x
  3. Step 3: Cross multiply
    577,903.60x = 866,272.20 × 262,586.80
  4. Step 4: Simplify right side
    577,903.60x = 227,471,644,926.96
  5. Step 5: Solve for x
    x = 227,471,644,926.96/577,903.60
  6. Step 6: Final answer
    x = 393,615.21

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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.