Home / 1,129,556.16-1,558,789.38-620,290.80

Finding the Fourth Proportional to 1,129,556.16, 1,558,789.38 and 620,290.80

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Solution

The fourth proportional to 1,129,556.16, 1,558,789.38 and 620,290.80 is: 856,002.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,556.16 : 1,558,789.38 = 620,290.80 : x
  2. Step 2: Convert to fraction form
    1,129,556.16/1,558,789.38 = 620,290.80/x
  3. Step 3: Cross multiply
    1,129,556.16x = 1,558,789.38 × 620,290.80
  4. Step 4: Simplify right side
    1,129,556.16x = 966,902,711,551.70
  5. Step 5: Solve for x
    x = 966,902,711,551.70/1,129,556.16
  6. Step 6: Final answer
    x = 856,002.34

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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.