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Finding the Fourth Proportional to 651,072.60, 898,791.48 and 433,642.86

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Solution

The fourth proportional to 651,072.60, 898,791.48 and 433,642.86 is: 598,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,072.60 : 898,791.48 = 433,642.86 : x
  2. Step 2: Convert to fraction form
    651,072.60/898,791.48 = 433,642.86/x
  3. Step 3: Cross multiply
    651,072.60x = 898,791.48 × 433,642.86
  4. Step 4: Simplify right side
    651,072.60x = 389,754,507,930.83
  5. Step 5: Solve for x
    x = 389,754,507,930.83/651,072.60
  6. Step 6: Final answer
    x = 598,634.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.