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Finding the Fourth Proportional to 662,665.98, 914,425.15 and 372,261.77

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Solution

The fourth proportional to 662,665.98, 914,425.15 and 372,261.77 is: 513,690.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,665.98 : 914,425.15 = 372,261.77 : x
  2. Step 2: Convert to fraction form
    662,665.98/914,425.15 = 372,261.77/x
  3. Step 3: Cross multiply
    662,665.98x = 914,425.15 × 372,261.77
  4. Step 4: Simplify right side
    662,665.98x = 340,405,528,639.46
  5. Step 5: Solve for x
    x = 340,405,528,639.46/662,665.98
  6. Step 6: Final answer
    x = 513,690.97

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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.