Home / 642,515.04-963,523.40-342,832.12

Finding the Fourth Proportional to 642,515.04, 963,523.40 and 342,832.12

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Solution

The fourth proportional to 642,515.04, 963,523.40 and 342,832.12 is: 514,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,515.04 : 963,523.40 = 342,832.12 : x
  2. Step 2: Convert to fraction form
    642,515.04/963,523.40 = 342,832.12/x
  3. Step 3: Cross multiply
    642,515.04x = 963,523.40 × 342,832.12
  4. Step 4: Simplify right side
    642,515.04x = 330,326,769,891.61
  5. Step 5: Solve for x
    x = 330,326,769,891.61/642,515.04
  6. Step 6: Final answer
    x = 514,115.23

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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.