Home / 1,419,233.39-2,129,176.08-408,363.72

Finding the Fourth Proportional to 1,419,233.39, 2,129,176.08 and 408,363.72

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Solution

The fourth proportional to 1,419,233.39, 2,129,176.08 and 408,363.72 is: 612,639.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,233.39 : 2,129,176.08 = 408,363.72 : x
  2. Step 2: Convert to fraction form
    1,419,233.39/2,129,176.08 = 408,363.72/x
  3. Step 3: Cross multiply
    1,419,233.39x = 2,129,176.08 × 408,363.72
  4. Step 4: Simplify right side
    1,419,233.39x = 869,478,264,563.82
  5. Step 5: Solve for x
    x = 869,478,264,563.82/1,419,233.39
  6. Step 6: Final answer
    x = 612,639.38

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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.