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Finding the Fourth Proportional to 617,779.20, 926,686.08 and 218,363.52

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Solution

The fourth proportional to 617,779.20, 926,686.08 and 218,363.52 is: 327,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,779.20 : 926,686.08 = 218,363.52 : x
  2. Step 2: Convert to fraction form
    617,779.20/926,686.08 = 218,363.52/x
  3. Step 3: Cross multiply
    617,779.20x = 926,686.08 × 218,363.52
  4. Step 4: Simplify right side
    617,779.20x = 202,354,434,363.80
  5. Step 5: Solve for x
    x = 202,354,434,363.80/617,779.20
  6. Step 6: Final answer
    x = 327,551.39

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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.