Home / 987,317.19-1,481,511.60-419,017.95

Finding the Fourth Proportional to 987,317.19, 1,481,511.60 and 419,017.95

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Solution

The fourth proportional to 987,317.19, 1,481,511.60 and 419,017.95 is: 628,754.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,317.19 : 1,481,511.60 = 419,017.95 : x
  2. Step 2: Convert to fraction form
    987,317.19/1,481,511.60 = 419,017.95/x
  3. Step 3: Cross multiply
    987,317.19x = 1,481,511.60 × 419,017.95
  4. Step 4: Simplify right side
    987,317.19x = 620,779,953,533.22
  5. Step 5: Solve for x
    x = 620,779,953,533.22/987,317.19
  6. Step 6: Final answer
    x = 628,754.33

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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.