Home / 1,123,440.20-1,685,160.30-808,512.20

Finding the Fourth Proportional to 1,123,440.20, 1,685,160.30 and 808,512.20

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Solution

The fourth proportional to 1,123,440.20, 1,685,160.30 and 808,512.20 is: 1,212,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,440.20 : 1,685,160.30 = 808,512.20 : x
  2. Step 2: Convert to fraction form
    1,123,440.20/1,685,160.30 = 808,512.20/x
  3. Step 3: Cross multiply
    1,123,440.20x = 1,685,160.30 × 808,512.20
  4. Step 4: Simplify right side
    1,123,440.20x = 1,362,472,661,505.66
  5. Step 5: Solve for x
    x = 1,362,472,661,505.66/1,123,440.20
  6. Step 6: Final answer
    x = 1,212,768.30

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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.