Home / 1,332,489.88-1,998,445.38-421,743.16

Finding the Fourth Proportional to 1,332,489.88, 1,998,445.38 and 421,743.16

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Solution

The fourth proportional to 1,332,489.88, 1,998,445.38 and 421,743.16 is: 632,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,489.88 : 1,998,445.38 = 421,743.16 : x
  2. Step 2: Convert to fraction form
    1,332,489.88/1,998,445.38 = 421,743.16/x
  3. Step 3: Cross multiply
    1,332,489.88x = 1,998,445.38 × 421,743.16
  4. Step 4: Simplify right side
    1,332,489.88x = 842,830,669,648.60
  5. Step 5: Solve for x
    x = 842,830,669,648.60/1,332,489.88
  6. Step 6: Final answer
    x = 632,523.13

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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.