Home / 870,294.11-1,305,145.53-301,542.48

Finding the Fourth Proportional to 870,294.11, 1,305,145.53 and 301,542.48

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Solution

The fourth proportional to 870,294.11, 1,305,145.53 and 301,542.48 is: 452,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,294.11 : 1,305,145.53 = 301,542.48 : x
  2. Step 2: Convert to fraction form
    870,294.11/1,305,145.53 = 301,542.48/x
  3. Step 3: Cross multiply
    870,294.11x = 1,305,145.53 × 301,542.48
  4. Step 4: Simplify right side
    870,294.11x = 393,556,819,877.11
  5. Step 5: Solve for x
    x = 393,556,819,877.11/870,294.11
  6. Step 6: Final answer
    x = 452,211.29

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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.