Home / 781,505.90-1,172,223.63-325,909.52

Finding the Fourth Proportional to 781,505.90, 1,172,223.63 and 325,909.52

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Solution

The fourth proportional to 781,505.90, 1,172,223.63 and 325,909.52 is: 488,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,505.90 : 1,172,223.63 = 325,909.52 : x
  2. Step 2: Convert to fraction form
    781,505.90/1,172,223.63 = 325,909.52/x
  3. Step 3: Cross multiply
    781,505.90x = 1,172,223.63 × 325,909.52
  4. Step 4: Simplify right side
    781,505.90x = 382,038,840,585.96
  5. Step 5: Solve for x
    x = 382,038,840,585.96/781,505.90
  6. Step 6: Final answer
    x = 488,849.59

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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.