Home / 1,209,943.32-1,814,902.68-311,381.56

Finding the Fourth Proportional to 1,209,943.32, 1,814,902.68 and 311,381.56

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Solution

The fourth proportional to 1,209,943.32, 1,814,902.68 and 311,381.56 is: 467,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,943.32 : 1,814,902.68 = 311,381.56 : x
  2. Step 2: Convert to fraction form
    1,209,943.32/1,814,902.68 = 311,381.56/x
  3. Step 3: Cross multiply
    1,209,943.32x = 1,814,902.68 × 311,381.56
  4. Step 4: Simplify right side
    1,209,943.32x = 565,127,233,660.02
  5. Step 5: Solve for x
    x = 565,127,233,660.02/1,209,943.32
  6. Step 6: Final answer
    x = 467,069.18

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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.