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Finding the Fourth Proportional to 655,947.18, 983,583 and 300,656.88

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Solution

The fourth proportional to 655,947.18, 983,583 and 300,656.88 is: 450,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,947.18 : 983,583 = 300,656.88 : x
  2. Step 2: Convert to fraction form
    655,947.18/983,583 = 300,656.88/x
  3. Step 3: Cross multiply
    655,947.18x = 983,583 × 300,656.88
  4. Step 4: Simplify right side
    655,947.18x = 295,720,996,001.04
  5. Step 5: Solve for x
    x = 295,720,996,001.04/655,947.18
  6. Step 6: Final answer
    x = 450,830.50

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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.