Home / 871,388.71-1,307,304.83-511,863.58

Finding the Fourth Proportional to 871,388.71, 1,307,304.83 and 511,863.58

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Solution

The fourth proportional to 871,388.71, 1,307,304.83 and 511,863.58 is: 767,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,388.71 : 1,307,304.83 = 511,863.58 : x
  2. Step 2: Convert to fraction form
    871,388.71/1,307,304.83 = 511,863.58/x
  3. Step 3: Cross multiply
    871,388.71x = 1,307,304.83 × 511,863.58
  4. Step 4: Simplify right side
    871,388.71x = 669,161,730,435.09
  5. Step 5: Solve for x
    x = 669,161,730,435.09/871,388.71
  6. Step 6: Final answer
    x = 767,925.64

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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.