Home / 740,221.20-1,110,331.80-341,640.45

Finding the Fourth Proportional to 740,221.20, 1,110,331.80 and 341,640.45

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Solution

The fourth proportional to 740,221.20, 1,110,331.80 and 341,640.45 is: 512,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,221.20 : 1,110,331.80 = 341,640.45 : x
  2. Step 2: Convert to fraction form
    740,221.20/1,110,331.80 = 341,640.45/x
  3. Step 3: Cross multiply
    740,221.20x = 1,110,331.80 × 341,640.45
  4. Step 4: Simplify right side
    740,221.20x = 379,334,255,801.31
  5. Step 5: Solve for x
    x = 379,334,255,801.31/740,221.20
  6. Step 6: Final answer
    x = 512,460.68

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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.