Home / 724,362.42-1,086,766.11-345,766.26

Finding the Fourth Proportional to 724,362.42, 1,086,766.11 and 345,766.26

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Solution

The fourth proportional to 724,362.42, 1,086,766.11 and 345,766.26 is: 518,755.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,362.42 : 1,086,766.11 = 345,766.26 : x
  2. Step 2: Convert to fraction form
    724,362.42/1,086,766.11 = 345,766.26/x
  3. Step 3: Cross multiply
    724,362.42x = 1,086,766.11 × 345,766.26
  4. Step 4: Simplify right side
    724,362.42x = 375,767,053,349.45
  5. Step 5: Solve for x
    x = 375,767,053,349.45/724,362.42
  6. Step 6: Final answer
    x = 518,755.59

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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.