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Finding the Fourth Proportional to 577,430.88, 866,399.51 and 274,044.15

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Solution

The fourth proportional to 577,430.88, 866,399.51 and 274,044.15 is: 411,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,430.88 : 866,399.51 = 274,044.15 : x
  2. Step 2: Convert to fraction form
    577,430.88/866,399.51 = 274,044.15/x
  3. Step 3: Cross multiply
    577,430.88x = 866,399.51 × 274,044.15
  4. Step 4: Simplify right side
    577,430.88x = 237,431,716,380.48
  5. Step 5: Solve for x
    x = 237,431,716,380.48/577,430.88
  6. Step 6: Final answer
    x = 411,186.39

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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.