Home / 724,281.90-1,086,811.65-303,600.30

Finding the Fourth Proportional to 724,281.90, 1,086,811.65 and 303,600.30

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Solution

The fourth proportional to 724,281.90, 1,086,811.65 and 303,600.30 is: 455,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,281.90 : 1,086,811.65 = 303,600.30 : x
  2. Step 2: Convert to fraction form
    724,281.90/1,086,811.65 = 303,600.30/x
  3. Step 3: Cross multiply
    724,281.90x = 1,086,811.65 × 303,600.30
  4. Step 4: Simplify right side
    724,281.90x = 329,956,342,983.50
  5. Step 5: Solve for x
    x = 329,956,342,983.50/724,281.90
  6. Step 6: Final answer
    x = 455,563.42

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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.