Home / 815,346.03-1,222,600.69-431,302.17

Finding the Fourth Proportional to 815,346.03, 1,222,600.69 and 431,302.17

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Solution

The fourth proportional to 815,346.03, 1,222,600.69 and 431,302.17 is: 646,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,346.03 : 1,222,600.69 = 431,302.17 : x
  2. Step 2: Convert to fraction form
    815,346.03/1,222,600.69 = 431,302.17/x
  3. Step 3: Cross multiply
    815,346.03x = 1,222,600.69 × 431,302.17
  4. Step 4: Simplify right side
    815,346.03x = 527,310,330,640.50
  5. Step 5: Solve for x
    x = 527,310,330,640.50/815,346.03
  6. Step 6: Final answer
    x = 646,731.95

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1.5x scale

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.