Home / 810,015.20-1,215,022.80-573,624.80

Finding the Fourth Proportional to 810,015.20, 1,215,022.80 and 573,624.80

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Solution

The fourth proportional to 810,015.20, 1,215,022.80 and 573,624.80 is: 860,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,015.20 : 1,215,022.80 = 573,624.80 : x
  2. Step 2: Convert to fraction form
    810,015.20/1,215,022.80 = 573,624.80/x
  3. Step 3: Cross multiply
    810,015.20x = 1,215,022.80 × 573,624.80
  4. Step 4: Simplify right side
    810,015.20x = 696,967,210,645.44
  5. Step 5: Solve for x
    x = 696,967,210,645.44/810,015.20
  6. Step 6: Final answer
    x = 860,437.20

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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.