Home / 729,328.05-1,093,062.60-409,479.30

Finding the Fourth Proportional to 729,328.05, 1,093,062.60 and 409,479.30

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Solution

The fourth proportional to 729,328.05, 1,093,062.60 and 409,479.30 is: 613,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,328.05 : 1,093,062.60 = 409,479.30 : x
  2. Step 2: Convert to fraction form
    729,328.05/1,093,062.60 = 409,479.30/x
  3. Step 3: Cross multiply
    729,328.05x = 1,093,062.60 × 409,479.30
  4. Step 4: Simplify right side
    729,328.05x = 447,586,508,304.18
  5. Step 5: Solve for x
    x = 447,586,508,304.18/729,328.05
  6. Step 6: Final answer
    x = 613,697.10

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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.