Home / 815,553.96-1,223,019.12-268,319.01

Finding the Fourth Proportional to 815,553.96, 1,223,019.12 and 268,319.01

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Solution

The fourth proportional to 815,553.96, 1,223,019.12 and 268,319.01 is: 402,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,553.96 : 1,223,019.12 = 268,319.01 : x
  2. Step 2: Convert to fraction form
    815,553.96/1,223,019.12 = 268,319.01/x
  3. Step 3: Cross multiply
    815,553.96x = 1,223,019.12 × 268,319.01
  4. Step 4: Simplify right side
    815,553.96x = 328,159,279,489.47
  5. Step 5: Solve for x
    x = 328,159,279,489.47/815,553.96
  6. Step 6: Final answer
    x = 402,375.93

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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.