Home / 1,230,135.78-1,843,707.71-870,410.30

Finding the Fourth Proportional to 1,230,135.78, 1,843,707.71 and 870,410.30

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Solution

The fourth proportional to 1,230,135.78, 1,843,707.71 and 870,410.30 is: 1,304,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,135.78 : 1,843,707.71 = 870,410.30 : x
  2. Step 2: Convert to fraction form
    1,230,135.78/1,843,707.71 = 870,410.30/x
  3. Step 3: Cross multiply
    1,230,135.78x = 1,843,707.71 × 870,410.30
  4. Step 4: Simplify right side
    1,230,135.78x = 1,604,782,167,402.82
  5. Step 5: Solve for x
    x = 1,604,782,167,402.82/1,230,135.78
  6. Step 6: Final answer
    x = 1,304,556.94

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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.