Home / 867,023.60-1,300,535.40-447,119.60

Finding the Fourth Proportional to 867,023.60, 1,300,535.40 and 447,119.60

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Solution

The fourth proportional to 867,023.60, 1,300,535.40 and 447,119.60 is: 670,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,023.60 : 1,300,535.40 = 447,119.60 : x
  2. Step 2: Convert to fraction form
    867,023.60/1,300,535.40 = 447,119.60/x
  3. Step 3: Cross multiply
    867,023.60x = 1,300,535.40 × 447,119.60
  4. Step 4: Simplify right side
    867,023.60x = 581,494,867,833.84
  5. Step 5: Solve for x
    x = 581,494,867,833.84/867,023.60
  6. Step 6: Final answer
    x = 670,679.40

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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.