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Finding the Fourth Proportional to 3,419,891.80, 5,129,837.70 and 895,802.20

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Solution

The fourth proportional to 3,419,891.80, 5,129,837.70 and 895,802.20 is: 1,343,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,891.80 : 5,129,837.70 = 895,802.20 : x
  2. Step 2: Convert to fraction form
    3,419,891.80/5,129,837.70 = 895,802.20/x
  3. Step 3: Cross multiply
    3,419,891.80x = 5,129,837.70 × 895,802.20
  4. Step 4: Simplify right side
    3,419,891.80x = 4,595,319,897,302.94
  5. Step 5: Solve for x
    x = 4,595,319,897,302.94/3,419,891.80
  6. Step 6: Final answer
    x = 1,343,703.30

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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.