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Finding the Fourth Proportional to 480,879.94, 720,851.18 and 200,477.38

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Solution

The fourth proportional to 480,879.94, 720,851.18 and 200,477.38 is: 300,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,879.94 : 720,851.18 = 200,477.38 : x
  2. Step 2: Convert to fraction form
    480,879.94/720,851.18 = 200,477.38/x
  3. Step 3: Cross multiply
    480,879.94x = 720,851.18 × 200,477.38
  4. Step 4: Simplify right side
    480,879.94x = 144,514,355,936.31
  5. Step 5: Solve for x
    x = 144,514,355,936.31/480,879.94
  6. Step 6: Final answer
    x = 300,520.66

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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.