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Finding the Fourth Proportional to 662,127.50, 913,672.76 and 371,672.58

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Solution

The fourth proportional to 662,127.50, 913,672.76 and 371,672.58 is: 512,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,127.50 : 913,672.76 = 371,672.58 : x
  2. Step 2: Convert to fraction form
    662,127.50/913,672.76 = 371,672.58/x
  3. Step 3: Cross multiply
    662,127.50x = 913,672.76 × 371,672.58
  4. Step 4: Simplify right side
    662,127.50x = 339,587,111,984.92
  5. Step 5: Solve for x
    x = 339,587,111,984.92/662,127.50
  6. Step 6: Final answer
    x = 512,872.69

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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.