Home / 867,025.60-1,300,538.40-447,121.60

Finding the Fourth Proportional to 867,025.60, 1,300,538.40 and 447,121.60

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Solution

The fourth proportional to 867,025.60, 1,300,538.40 and 447,121.60 is: 670,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,025.60 : 1,300,538.40 = 447,121.60 : x
  2. Step 2: Convert to fraction form
    867,025.60/1,300,538.40 = 447,121.60/x
  3. Step 3: Cross multiply
    867,025.60x = 1,300,538.40 × 447,121.60
  4. Step 4: Simplify right side
    867,025.60x = 581,498,810,269.44
  5. Step 5: Solve for x
    x = 581,498,810,269.44/867,025.60
  6. Step 6: Final answer
    x = 670,682.40

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Half scale
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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.