Home / 771,723.71-1,157,629.31-239,320.43

Finding the Fourth Proportional to 771,723.71, 1,157,629.31 and 239,320.43

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Solution

The fourth proportional to 771,723.71, 1,157,629.31 and 239,320.43 is: 358,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,723.71 : 1,157,629.31 = 239,320.43 : x
  2. Step 2: Convert to fraction form
    771,723.71/1,157,629.31 = 239,320.43/x
  3. Step 3: Cross multiply
    771,723.71x = 1,157,629.31 × 239,320.43
  4. Step 4: Simplify right side
    771,723.71x = 277,044,344,249.80
  5. Step 5: Solve for x
    x = 277,044,344,249.80/771,723.71
  6. Step 6: Final answer
    x = 358,994.21

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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.