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Finding the Fourth Proportional to 898,930.80, 1,240,524.60 and 496,522.80

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Solution

The fourth proportional to 898,930.80, 1,240,524.60 and 496,522.80 is: 685,201.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,930.80 : 1,240,524.60 = 496,522.80 : x
  2. Step 2: Convert to fraction form
    898,930.80/1,240,524.60 = 496,522.80/x
  3. Step 3: Cross multiply
    898,930.80x = 1,240,524.60 × 496,522.80
  4. Step 4: Simplify right side
    898,930.80x = 615,948,747,860.88
  5. Step 5: Solve for x
    x = 615,948,747,860.88/898,930.80
  6. Step 6: Final answer
    x = 685,201.52

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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.