Home / 1,123,801.20-1,550,718.36-664,929.84

Finding the Fourth Proportional to 1,123,801.20, 1,550,718.36 and 664,929.84

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Solution

The fourth proportional to 1,123,801.20, 1,550,718.36 and 664,929.84 is: 917,527.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,801.20 : 1,550,718.36 = 664,929.84 : x
  2. Step 2: Convert to fraction form
    1,123,801.20/1,550,718.36 = 664,929.84/x
  3. Step 3: Cross multiply
    1,123,801.20x = 1,550,718.36 × 664,929.84
  4. Step 4: Simplify right side
    1,123,801.20x = 1,031,118,910,999.86
  5. Step 5: Solve for x
    x = 1,031,118,910,999.86/1,123,801.20
  6. Step 6: Final answer
    x = 917,527.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.