Home / 781,829.20-1,172,992.74-349,480.36

Finding the Fourth Proportional to 781,829.20, 1,172,992.74 and 349,480.36

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Solution

The fourth proportional to 781,829.20, 1,172,992.74 and 349,480.36 is: 524,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,829.20 : 1,172,992.74 = 349,480.36 : x
  2. Step 2: Convert to fraction form
    781,829.20/1,172,992.74 = 349,480.36/x
  3. Step 3: Cross multiply
    781,829.20x = 1,172,992.74 × 349,480.36
  4. Step 4: Simplify right side
    781,829.20x = 409,937,925,052.59
  5. Step 5: Solve for x
    x = 409,937,925,052.59/781,829.20
  6. Step 6: Final answer
    x = 524,331.82

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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.