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Finding the Fourth Proportional to 658,772.64, 987,395.94 and 303,040.08

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Solution

The fourth proportional to 658,772.64, 987,395.94 and 303,040.08 is: 454,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,772.64 : 987,395.94 = 303,040.08 : x
  2. Step 2: Convert to fraction form
    658,772.64/987,395.94 = 303,040.08/x
  3. Step 3: Cross multiply
    658,772.64x = 987,395.94 × 303,040.08
  4. Step 4: Simplify right side
    658,772.64x = 299,220,544,649.28
  5. Step 5: Solve for x
    x = 299,220,544,649.28/658,772.64
  6. Step 6: Final answer
    x = 454,209.13

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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.