Home / 815,695.67-1,222,285.97-436,666.70

Finding the Fourth Proportional to 815,695.67, 1,222,285.97 and 436,666.70

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Solution

The fourth proportional to 815,695.67, 1,222,285.97 and 436,666.70 is: 654,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,695.67 : 1,222,285.97 = 436,666.70 : x
  2. Step 2: Convert to fraction form
    815,695.67/1,222,285.97 = 436,666.70/x
  3. Step 3: Cross multiply
    815,695.67x = 1,222,285.97 × 436,666.70
  4. Step 4: Simplify right side
    815,695.67x = 533,731,580,976.20
  5. Step 5: Solve for x
    x = 533,731,580,976.20/815,695.67
  6. Step 6: Final answer
    x = 654,326.85

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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.