Home / 674,811.60-1,012,217.40-275,319.60

Finding the Fourth Proportional to 674,811.60, 1,012,217.40 and 275,319.60

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Solution

The fourth proportional to 674,811.60, 1,012,217.40 and 275,319.60 is: 412,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,811.60 : 1,012,217.40 = 275,319.60 : x
  2. Step 2: Convert to fraction form
    674,811.60/1,012,217.40 = 275,319.60/x
  3. Step 3: Cross multiply
    674,811.60x = 1,012,217.40 × 275,319.60
  4. Step 4: Simplify right side
    674,811.60x = 278,683,289,681.04
  5. Step 5: Solve for x
    x = 278,683,289,681.04/674,811.60
  6. Step 6: Final answer
    x = 412,979.40

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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.