Home / 758,858.20-1,138,352.10-260,222.20

Finding the Fourth Proportional to 758,858.20, 1,138,352.10 and 260,222.20

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Solution

The fourth proportional to 758,858.20, 1,138,352.10 and 260,222.20 is: 390,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,858.20 : 1,138,352.10 = 260,222.20 : x
  2. Step 2: Convert to fraction form
    758,858.20/1,138,352.10 = 260,222.20/x
  3. Step 3: Cross multiply
    758,858.20x = 1,138,352.10 × 260,222.20
  4. Step 4: Simplify right side
    758,858.20x = 296,224,487,836.62
  5. Step 5: Solve for x
    x = 296,224,487,836.62/758,858.20
  6. Step 6: Final answer
    x = 390,355.52

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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.