Home / 916,947.80-1,374,255.30-442,611.80

Finding the Fourth Proportional to 916,947.80, 1,374,255.30 and 442,611.80

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Solution

The fourth proportional to 916,947.80, 1,374,255.30 and 442,611.80 is: 663,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,947.80 : 1,374,255.30 = 442,611.80 : x
  2. Step 2: Convert to fraction form
    916,947.80/1,374,255.30 = 442,611.80/x
  3. Step 3: Cross multiply
    916,947.80x = 1,374,255.30 × 442,611.80
  4. Step 4: Simplify right side
    916,947.80x = 608,261,611,992.54
  5. Step 5: Solve for x
    x = 608,261,611,992.54/916,947.80
  6. Step 6: Final answer
    x = 663,354.68

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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.