Home / 810,631.08-1,215,761.54-305,245.35

Finding the Fourth Proportional to 810,631.08, 1,215,761.54 and 305,245.35

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Solution

The fourth proportional to 810,631.08, 1,215,761.54 and 305,245.35 is: 457,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,631.08 : 1,215,761.54 = 305,245.35 : x
  2. Step 2: Convert to fraction form
    810,631.08/1,215,761.54 = 305,245.35/x
  3. Step 3: Cross multiply
    810,631.08x = 1,215,761.54 × 305,245.35
  4. Step 4: Simplify right side
    810,631.08x = 371,105,555,267.61
  5. Step 5: Solve for x
    x = 371,105,555,267.61/810,631.08
  6. Step 6: Final answer
    x = 457,798.33

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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.