Home / 1,297,861.29-1,791,084.69-717,121.83

Finding the Fourth Proportional to 1,297,861.29, 1,791,084.69 and 717,121.83

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Solution

The fourth proportional to 1,297,861.29, 1,791,084.69 and 717,121.83 is: 989,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,861.29 : 1,791,084.69 = 717,121.83 : x
  2. Step 2: Convert to fraction form
    1,297,861.29/1,791,084.69 = 717,121.83/x
  3. Step 3: Cross multiply
    1,297,861.29x = 1,791,084.69 × 717,121.83
  4. Step 4: Simplify right side
    1,297,861.29x = 1,284,425,937,294.35
  5. Step 5: Solve for x
    x = 1,284,425,937,294.35/1,297,861.29
  6. Step 6: Final answer
    x = 989,648.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.