Home / 916,969.80-1,374,288.30-442,633.80

Finding the Fourth Proportional to 916,969.80, 1,374,288.30 and 442,633.80

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Solution

The fourth proportional to 916,969.80, 1,374,288.30 and 442,633.80 is: 663,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,969.80 : 1,374,288.30 = 442,633.80 : x
  2. Step 2: Convert to fraction form
    916,969.80/1,374,288.30 = 442,633.80/x
  3. Step 3: Cross multiply
    916,969.80x = 1,374,288.30 × 442,633.80
  4. Step 4: Simplify right side
    916,969.80x = 608,306,452,524.54
  5. Step 5: Solve for x
    x = 608,306,452,524.54/916,969.80
  6. Step 6: Final answer
    x = 663,387.66

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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.