Home / 480,331.62-720,275.94-143,284.86

Finding the Fourth Proportional to 480,331.62, 720,275.94 and 143,284.86

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Solution

The fourth proportional to 480,331.62, 720,275.94 and 143,284.86 is: 214,861.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,331.62 : 720,275.94 = 143,284.86 : x
  2. Step 2: Convert to fraction form
    480,331.62/720,275.94 = 143,284.86/x
  3. Step 3: Cross multiply
    480,331.62x = 720,275.94 × 143,284.86
  4. Step 4: Simplify right side
    480,331.62x = 103,204,637,224.27
  5. Step 5: Solve for x
    x = 103,204,637,224.27/480,331.62
  6. Step 6: Final answer
    x = 214,861.22

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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.