Home / 781,505.65-1,172,223.26-325,909.27

Finding the Fourth Proportional to 781,505.65, 1,172,223.26 and 325,909.27

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Solution

The fourth proportional to 781,505.65, 1,172,223.26 and 325,909.27 is: 488,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,505.65 : 1,172,223.26 = 325,909.27 : x
  2. Step 2: Convert to fraction form
    781,505.65/1,172,223.26 = 325,909.27/x
  3. Step 3: Cross multiply
    781,505.65x = 1,172,223.26 × 325,909.27
  4. Step 4: Simplify right side
    781,505.65x = 382,038,425,314.07
  5. Step 5: Solve for x
    x = 382,038,425,314.07/781,505.65
  6. Step 6: Final answer
    x = 488,849.22

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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.