Home / 5,280,387.30-7,920,580.95-4,217,505.30

Finding the Fourth Proportional to 5,280,387.30, 7,920,580.95 and 4,217,505.30

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Solution

The fourth proportional to 5,280,387.30, 7,920,580.95 and 4,217,505.30 is: 6,326,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,387.30 : 7,920,580.95 = 4,217,505.30 : x
  2. Step 2: Convert to fraction form
    5,280,387.30/7,920,580.95 = 4,217,505.30/x
  3. Step 3: Cross multiply
    5,280,387.30x = 7,920,580.95 × 4,217,505.30
  4. Step 4: Simplify right side
    5,280,387.30x = 33,405,092,135,704.04
  5. Step 5: Solve for x
    x = 33,405,092,135,704.04/5,280,387.30
  6. Step 6: Final answer
    x = 6,326,257.95

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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.