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Finding the Fourth Proportional to 519,015.40, 716,106.18 and 304,040.14

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Solution

The fourth proportional to 519,015.40, 716,106.18 and 304,040.14 is: 419,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,015.40 : 716,106.18 = 304,040.14 : x
  2. Step 2: Convert to fraction form
    519,015.40/716,106.18 = 304,040.14/x
  3. Step 3: Cross multiply
    519,015.40x = 716,106.18 × 304,040.14
  4. Step 4: Simplify right side
    519,015.40x = 217,725,018,121.33
  5. Step 5: Solve for x
    x = 217,725,018,121.33/519,015.40
  6. Step 6: Final answer
    x = 419,496.26

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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.