Home / 987,312.19-1,481,504.10-419,012.95

Finding the Fourth Proportional to 987,312.19, 1,481,504.10 and 419,012.95

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Solution

The fourth proportional to 987,312.19, 1,481,504.10 and 419,012.95 is: 628,746.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,312.19 : 1,481,504.10 = 419,012.95 : x
  2. Step 2: Convert to fraction form
    987,312.19/1,481,504.10 = 419,012.95/x
  3. Step 3: Cross multiply
    987,312.19x = 1,481,504.10 × 419,012.95
  4. Step 4: Simplify right side
    987,312.19x = 620,769,403,378.10
  5. Step 5: Solve for x
    x = 620,769,403,378.10/987,312.19
  6. Step 6: Final answer
    x = 628,746.82

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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.