Home / 811,058.56-1,216,657.04-212,018.75

Finding the Fourth Proportional to 811,058.56, 1,216,657.04 and 212,018.75

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Solution

The fourth proportional to 811,058.56, 1,216,657.04 and 212,018.75 is: 318,046.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,058.56 : 1,216,657.04 = 212,018.75 : x
  2. Step 2: Convert to fraction form
    811,058.56/1,216,657.04 = 212,018.75/x
  3. Step 3: Cross multiply
    811,058.56x = 1,216,657.04 × 212,018.75
  4. Step 4: Simplify right side
    811,058.56x = 257,954,106,781.05
  5. Step 5: Solve for x
    x = 257,954,106,781.05/811,058.56
  6. Step 6: Final answer
    x = 318,046.22

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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.