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Finding the Fourth Proportional to 778,801.10, 1,168,238.10 and 246,363.80

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Solution

The fourth proportional to 778,801.10, 1,168,238.10 and 246,363.80 is: 369,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,801.10 : 1,168,238.10 = 246,363.80 : x
  2. Step 2: Convert to fraction form
    778,801.10/1,168,238.10 = 246,363.80/x
  3. Step 3: Cross multiply
    778,801.10x = 1,168,238.10 × 246,363.80
  4. Step 4: Simplify right side
    778,801.10x = 287,811,577,620.78
  5. Step 5: Solve for x
    x = 287,811,577,620.78/778,801.10
  6. Step 6: Final answer
    x = 369,557.23

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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.