Home / 555,058.93-765,981.31-300,410.12

Finding the Fourth Proportional to 555,058.93, 765,981.31 and 300,410.12

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Solution

The fourth proportional to 555,058.93, 765,981.31 and 300,410.12 is: 414,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,058.93 : 765,981.31 = 300,410.12 : x
  2. Step 2: Convert to fraction form
    555,058.93/765,981.31 = 300,410.12/x
  3. Step 3: Cross multiply
    555,058.93x = 765,981.31 × 300,410.12
  4. Step 4: Simplify right side
    555,058.93x = 230,108,531,922.90
  5. Step 5: Solve for x
    x = 230,108,531,922.90/555,058.93
  6. Step 6: Final answer
    x = 414,565.95

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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.