Home / 987,308.19-1,481,498.10-419,008.95

Finding the Fourth Proportional to 987,308.19, 1,481,498.10 and 419,008.95

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Solution

The fourth proportional to 987,308.19, 1,481,498.10 and 419,008.95 is: 628,740.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,308.19 : 1,481,498.10 = 419,008.95 : x
  2. Step 2: Convert to fraction form
    987,308.19/1,481,498.10 = 419,008.95/x
  3. Step 3: Cross multiply
    987,308.19x = 1,481,498.10 × 419,008.95
  4. Step 4: Simplify right side
    987,308.19x = 620,760,963,308.00
  5. Step 5: Solve for x
    x = 620,760,963,308.00/987,308.19
  6. Step 6: Final answer
    x = 628,740.82

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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.