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Finding the Fourth Proportional to 655,677.64, 983,178.15 and 300,387.18

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Solution

The fourth proportional to 655,677.64, 983,178.15 and 300,387.18 is: 450,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,677.64 : 983,178.15 = 300,387.18 : x
  2. Step 2: Convert to fraction form
    655,677.64/983,178.15 = 300,387.18/x
  3. Step 3: Cross multiply
    655,677.64x = 983,178.15 × 300,387.18
  4. Step 4: Simplify right side
    655,677.64x = 295,334,116,166.25
  5. Step 5: Solve for x
    x = 295,334,116,166.25/655,677.64
  6. Step 6: Final answer
    x = 450,425.79

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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.