Home / 781,828.92-1,172,992.56-349,479.72

Finding the Fourth Proportional to 781,828.92, 1,172,992.56 and 349,479.72

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Solution

The fourth proportional to 781,828.92, 1,172,992.56 and 349,479.72 is: 524,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,828.92 : 1,172,992.56 = 349,479.72 : x
  2. Step 2: Convert to fraction form
    781,828.92/1,172,992.56 = 349,479.72/x
  3. Step 3: Cross multiply
    781,828.92x = 1,172,992.56 × 349,479.72
  4. Step 4: Simplify right side
    781,828.92x = 409,937,111,430.88
  5. Step 5: Solve for x
    x = 409,937,111,430.88/781,828.92
  6. Step 6: Final answer
    x = 524,330.96

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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.