Home / 741,600.45-1,023,428.78-419,358.75

Finding the Fourth Proportional to 741,600.45, 1,023,428.78 and 419,358.75

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Solution

The fourth proportional to 741,600.45, 1,023,428.78 and 419,358.75 is: 578,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,600.45 : 1,023,428.78 = 419,358.75 : x
  2. Step 2: Convert to fraction form
    741,600.45/1,023,428.78 = 419,358.75/x
  3. Step 3: Cross multiply
    741,600.45x = 1,023,428.78 × 419,358.75
  4. Step 4: Simplify right side
    741,600.45x = 429,183,811,798.03
  5. Step 5: Solve for x
    x = 429,183,811,798.03/741,600.45
  6. Step 6: Final answer
    x = 578,726.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.