Home / 721,907.60-1,082,861.40-367,613.60

Finding the Fourth Proportional to 721,907.60, 1,082,861.40 and 367,613.60

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Solution

The fourth proportional to 721,907.60, 1,082,861.40 and 367,613.60 is: 551,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,907.60 : 1,082,861.40 = 367,613.60 : x
  2. Step 2: Convert to fraction form
    721,907.60/1,082,861.40 = 367,613.60/x
  3. Step 3: Cross multiply
    721,907.60x = 1,082,861.40 × 367,613.60
  4. Step 4: Simplify right side
    721,907.60x = 398,074,577,555.04
  5. Step 5: Solve for x
    x = 398,074,577,555.04/721,907.60
  6. Step 6: Final answer
    x = 551,420.40

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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.