Home / 916,961.80-1,374,276.30-442,625.80

Finding the Fourth Proportional to 916,961.80, 1,374,276.30 and 442,625.80

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Solution

The fourth proportional to 916,961.80, 1,374,276.30 and 442,625.80 is: 663,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,961.80 : 1,374,276.30 = 442,625.80 : x
  2. Step 2: Convert to fraction form
    916,961.80/1,374,276.30 = 442,625.80/x
  3. Step 3: Cross multiply
    916,961.80x = 1,374,276.30 × 442,625.80
  4. Step 4: Simplify right side
    916,961.80x = 608,290,146,708.54
  5. Step 5: Solve for x
    x = 608,290,146,708.54/916,961.80
  6. Step 6: Final answer
    x = 663,375.67

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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.