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Finding the Fourth Proportional to 767,752.80, 1,150,160.40 and 412,648.80

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Solution

The fourth proportional to 767,752.80, 1,150,160.40 and 412,648.80 is: 618,183.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,752.80 : 1,150,160.40 = 412,648.80 : x
  2. Step 2: Convert to fraction form
    767,752.80/1,150,160.40 = 412,648.80/x
  3. Step 3: Cross multiply
    767,752.80x = 1,150,160.40 × 412,648.80
  4. Step 4: Simplify right side
    767,752.80x = 474,612,308,867.52
  5. Step 5: Solve for x
    x = 474,612,308,867.52/767,752.80
  6. Step 6: Final answer
    x = 618,183.76

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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.