Home / 480,558.42-720,827.91-143,600.04

Finding the Fourth Proportional to 480,558.42, 720,827.91 and 143,600.04

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Solution

The fourth proportional to 480,558.42, 720,827.91 and 143,600.04 is: 215,397.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,558.42 : 720,827.91 = 143,600.04 : x
  2. Step 2: Convert to fraction form
    480,558.42/720,827.91 = 143,600.04/x
  3. Step 3: Cross multiply
    480,558.42x = 720,827.91 × 143,600.04
  4. Step 4: Simplify right side
    480,558.42x = 103,510,916,709.12
  5. Step 5: Solve for x
    x = 103,510,916,709.12/480,558.42
  6. Step 6: Final answer
    x = 215,397.16

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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.