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Finding the Fourth Proportional to 627,909.42, 941,896.80 and 207,218.10

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Solution

The fourth proportional to 627,909.42, 941,896.80 and 207,218.10 is: 310,837.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,909.42 : 941,896.80 = 207,218.10 : x
  2. Step 2: Convert to fraction form
    627,909.42/941,896.80 = 207,218.10/x
  3. Step 3: Cross multiply
    627,909.42x = 941,896.80 × 207,218.10
  4. Step 4: Simplify right side
    627,909.42x = 195,178,065,292.08
  5. Step 5: Solve for x
    x = 195,178,065,292.08/627,909.42
  6. Step 6: Final answer
    x = 310,837.93

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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.