Home / 612,101.20-917,714.40-274,865.80

Finding the Fourth Proportional to 612,101.20, 917,714.40 and 274,865.80

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Solution

The fourth proportional to 612,101.20, 917,714.40 and 274,865.80 is: 412,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,101.20 : 917,714.40 = 274,865.80 : x
  2. Step 2: Convert to fraction form
    612,101.20/917,714.40 = 274,865.80/x
  3. Step 3: Cross multiply
    612,101.20x = 917,714.40 × 274,865.80
  4. Step 4: Simplify right side
    612,101.20x = 252,248,302,727.52
  5. Step 5: Solve for x
    x = 252,248,302,727.52/612,101.20
  6. Step 6: Final answer
    x = 412,102.28

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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.