Home / 815,748.07-1,223,797.20-342,160.51

Finding the Fourth Proportional to 815,748.07, 1,223,797.20 and 342,160.51

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Solution

The fourth proportional to 815,748.07, 1,223,797.20 and 342,160.51 is: 513,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,748.07 : 1,223,797.20 = 342,160.51 : x
  2. Step 2: Convert to fraction form
    815,748.07/1,223,797.20 = 342,160.51/x
  3. Step 3: Cross multiply
    815,748.07x = 1,223,797.20 × 342,160.51
  4. Step 4: Simplify right side
    815,748.07x = 418,735,074,088.57
  5. Step 5: Solve for x
    x = 418,735,074,088.57/815,748.07
  6. Step 6: Final answer
    x = 513,314.21

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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.