Home / 5,317,686.78-7,974,857.10-1,722,619.62

Finding the Fourth Proportional to 5,317,686.78, 7,974,857.10 and 1,722,619.62

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Solution

The fourth proportional to 5,317,686.78, 7,974,857.10 and 1,722,619.62 is: 2,583,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317,686.78 : 7,974,857.10 = 1,722,619.62 : x
  2. Step 2: Convert to fraction form
    5,317,686.78/7,974,857.10 = 1,722,619.62/x
  3. Step 3: Cross multiply
    5,317,686.78x = 7,974,857.10 × 1,722,619.62
  4. Step 4: Simplify right side
    5,317,686.78x = 13,737,645,307,156.30
  5. Step 5: Solve for x
    x = 13,737,645,307,156.30/5,317,686.78
  6. Step 6: Final answer
    x = 2,583,387.45

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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.