Home / 916,943.80-1,374,249.30-442,607.80

Finding the Fourth Proportional to 916,943.80, 1,374,249.30 and 442,607.80

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Solution

The fourth proportional to 916,943.80, 1,374,249.30 and 442,607.80 is: 663,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,943.80 : 1,374,249.30 = 442,607.80 : x
  2. Step 2: Convert to fraction form
    916,943.80/1,374,249.30 = 442,607.80/x
  3. Step 3: Cross multiply
    916,943.80x = 1,374,249.30 × 442,607.80
  4. Step 4: Simplify right side
    916,943.80x = 608,253,459,324.54
  5. Step 5: Solve for x
    x = 608,253,459,324.54/916,943.80
  6. Step 6: Final answer
    x = 663,348.68

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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.