Home / 772,204.32-1,157,617.49-392,912.91

Finding the Fourth Proportional to 772,204.32, 1,157,617.49 and 392,912.91

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Solution

The fourth proportional to 772,204.32, 1,157,617.49 and 392,912.91 is: 589,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,204.32 : 1,157,617.49 = 392,912.91 : x
  2. Step 2: Convert to fraction form
    772,204.32/1,157,617.49 = 392,912.91/x
  3. Step 3: Cross multiply
    772,204.32x = 1,157,617.49 × 392,912.91
  4. Step 4: Simplify right side
    772,204.32x = 454,842,854,698.23
  5. Step 5: Solve for x
    x = 454,842,854,698.23/772,204.32
  6. Step 6: Final answer
    x = 589,018.79

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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.