Home / 1,170,420.78-1,755,630.85-328,972.42

Finding the Fourth Proportional to 1,170,420.78, 1,755,630.85 and 328,972.42

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Solution

The fourth proportional to 1,170,420.78, 1,755,630.85 and 328,972.42 is: 493,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,420.78 : 1,755,630.85 = 328,972.42 : x
  2. Step 2: Convert to fraction form
    1,170,420.78/1,755,630.85 = 328,972.42/x
  3. Step 3: Cross multiply
    1,170,420.78x = 1,755,630.85 × 328,972.42
  4. Step 4: Simplify right side
    1,170,420.78x = 577,554,129,351.16
  5. Step 5: Solve for x
    x = 577,554,129,351.16/1,170,420.78
  6. Step 6: Final answer
    x = 493,458.54

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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.