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Finding the Fourth Proportional to 480,625.20, 720,937.80 and 401,893.20

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Solution

The fourth proportional to 480,625.20, 720,937.80 and 401,893.20 is: 602,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,625.20 : 720,937.80 = 401,893.20 : x
  2. Step 2: Convert to fraction form
    480,625.20/720,937.80 = 401,893.20/x
  3. Step 3: Cross multiply
    480,625.20x = 720,937.80 × 401,893.20
  4. Step 4: Simplify right side
    480,625.20x = 289,739,999,442.96
  5. Step 5: Solve for x
    x = 289,739,999,442.96/480,625.20
  6. Step 6: Final answer
    x = 602,839.80

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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.