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Finding the Fourth Proportional to 480,787.36, 720,792.24 and 200,514.40

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Solution

The fourth proportional to 480,787.36, 720,792.24 and 200,514.40 is: 300,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,787.36 : 720,792.24 = 200,514.40 : x
  2. Step 2: Convert to fraction form
    480,787.36/720,792.24 = 200,514.40/x
  3. Step 3: Cross multiply
    480,787.36x = 720,792.24 × 200,514.40
  4. Step 4: Simplify right side
    480,787.36x = 144,529,223,528.26
  5. Step 5: Solve for x
    x = 144,529,223,528.26/480,787.36
  6. Step 6: Final answer
    x = 300,609.45

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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.