Home / 724,015.20-1,086,022.80-458,950.80

Finding the Fourth Proportional to 724,015.20, 1,086,022.80 and 458,950.80

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Solution

The fourth proportional to 724,015.20, 1,086,022.80 and 458,950.80 is: 688,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,015.20 : 1,086,022.80 = 458,950.80 : x
  2. Step 2: Convert to fraction form
    724,015.20/1,086,022.80 = 458,950.80/x
  3. Step 3: Cross multiply
    724,015.20x = 1,086,022.80 × 458,950.80
  4. Step 4: Simplify right side
    724,015.20x = 498,431,032,878.24
  5. Step 5: Solve for x
    x = 498,431,032,878.24/724,015.20
  6. Step 6: Final answer
    x = 688,426.20

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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.