Home / 767,430.95-1,151,145.61-261,949.97

Finding the Fourth Proportional to 767,430.95, 1,151,145.61 and 261,949.97

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Solution

The fourth proportional to 767,430.95, 1,151,145.61 and 261,949.97 is: 392,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,430.95 : 1,151,145.61 = 261,949.97 : x
  2. Step 2: Convert to fraction form
    767,430.95/1,151,145.61 = 261,949.97/x
  3. Step 3: Cross multiply
    767,430.95x = 1,151,145.61 × 261,949.97
  4. Step 4: Simplify right side
    767,430.95x = 301,542,560,228.12
  5. Step 5: Solve for x
    x = 301,542,560,228.12/767,430.95
  6. Step 6: Final answer
    x = 392,924.68

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Half scale
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Double scale
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Similar ratio
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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.