Home / 890,404.98-1,230,388.20-648,267.18

Finding the Fourth Proportional to 890,404.98, 1,230,388.20 and 648,267.18

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Solution

The fourth proportional to 890,404.98, 1,230,388.20 and 648,267.18 is: 895,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,404.98 : 1,230,388.20 = 648,267.18 : x
  2. Step 2: Convert to fraction form
    890,404.98/1,230,388.20 = 648,267.18/x
  3. Step 3: Cross multiply
    890,404.98x = 1,230,388.20 × 648,267.18
  4. Step 4: Simplify right side
    890,404.98x = 797,620,288,719.28
  5. Step 5: Solve for x
    x = 797,620,288,719.28/890,404.98
  6. Step 6: Final answer
    x = 895,794.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.