Home / 724,477.90-1,086,716.85-458,538.70

Finding the Fourth Proportional to 724,477.90, 1,086,716.85 and 458,538.70

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Solution

The fourth proportional to 724,477.90, 1,086,716.85 and 458,538.70 is: 687,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,477.90 : 1,086,716.85 = 458,538.70 : x
  2. Step 2: Convert to fraction form
    724,477.90/1,086,716.85 = 458,538.70/x
  3. Step 3: Cross multiply
    724,477.90x = 1,086,716.85 × 458,538.70
  4. Step 4: Simplify right side
    724,477.90x = 498,301,731,667.10
  5. Step 5: Solve for x
    x = 498,301,731,667.10/724,477.90
  6. Step 6: Final answer
    x = 687,808.05

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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.