Home / 2,431,122.40-3,649,966.80-1,421,279.20

Finding the Fourth Proportional to 2,431,122.40, 3,649,966.80 and 1,421,279.20

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Solution

The fourth proportional to 2,431,122.40, 3,649,966.80 and 1,421,279.20 is: 2,133,838.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431,122.40 : 3,649,966.80 = 1,421,279.20 : x
  2. Step 2: Convert to fraction form
    2,431,122.40/3,649,966.80 = 1,421,279.20/x
  3. Step 3: Cross multiply
    2,431,122.40x = 3,649,966.80 × 1,421,279.20
  4. Step 4: Simplify right side
    2,431,122.40x = 5,187,621,893,530.56
  5. Step 5: Solve for x
    x = 5,187,621,893,530.56/2,431,122.40
  6. Step 6: Final answer
    x = 2,133,838.22

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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.