Home / 1,436,051.70-2,151,125.10-987,279.30

Finding the Fourth Proportional to 1,436,051.70, 2,151,125.10 and 987,279.30

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Solution

The fourth proportional to 1,436,051.70, 2,151,125.10 and 987,279.30 is: 1,478,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,051.70 : 2,151,125.10 = 987,279.30 : x
  2. Step 2: Convert to fraction form
    1,436,051.70/2,151,125.10 = 987,279.30/x
  3. Step 3: Cross multiply
    1,436,051.70x = 2,151,125.10 × 987,279.30
  4. Step 4: Simplify right side
    1,436,051.70x = 2,123,761,282,940.43
  5. Step 5: Solve for x
    x = 2,123,761,282,940.43/1,436,051.70
  6. Step 6: Final answer
    x = 1,478,889.15

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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.