Home / 1,238,921.12-1,859,058.76-480,792.44

Finding the Fourth Proportional to 1,238,921.12, 1,859,058.76 and 480,792.44

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Solution

The fourth proportional to 1,238,921.12, 1,859,058.76 and 480,792.44 is: 721,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,921.12 : 1,859,058.76 = 480,792.44 : x
  2. Step 2: Convert to fraction form
    1,238,921.12/1,859,058.76 = 480,792.44/x
  3. Step 3: Cross multiply
    1,238,921.12x = 1,859,058.76 × 480,792.44
  4. Step 4: Simplify right side
    1,238,921.12x = 893,821,397,323.77
  5. Step 5: Solve for x
    x = 893,821,397,323.77/1,238,921.12
  6. Step 6: Final answer
    x = 721,451.42

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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.