Home / 842,906.20-1,264,359.30-488,612.20

Finding the Fourth Proportional to 842,906.20, 1,264,359.30 and 488,612.20

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Solution

The fourth proportional to 842,906.20, 1,264,359.30 and 488,612.20 is: 732,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,906.20 : 1,264,359.30 = 488,612.20 : x
  2. Step 2: Convert to fraction form
    842,906.20/1,264,359.30 = 488,612.20/x
  3. Step 3: Cross multiply
    842,906.20x = 1,264,359.30 × 488,612.20
  4. Step 4: Simplify right side
    842,906.20x = 617,781,379,163.46
  5. Step 5: Solve for x
    x = 617,781,379,163.46/842,906.20
  6. Step 6: Final answer
    x = 732,918.30

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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.