Home / 612,218.70-917,890.65-274,983.30

Finding the Fourth Proportional to 612,218.70, 917,890.65 and 274,983.30

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Solution

The fourth proportional to 612,218.70, 917,890.65 and 274,983.30 is: 412,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,218.70 : 917,890.65 = 274,983.30 : x
  2. Step 2: Convert to fraction form
    612,218.70/917,890.65 = 274,983.30/x
  3. Step 3: Cross multiply
    612,218.70x = 917,890.65 × 274,983.30
  4. Step 4: Simplify right side
    612,218.70x = 252,404,599,976.15
  5. Step 5: Solve for x
    x = 252,404,599,976.15/612,218.70
  6. Step 6: Final answer
    x = 412,278.49

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1.5x scale

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.