Home / 1,321,341.98-1,982,307.74-422,837.69

Finding the Fourth Proportional to 1,321,341.98, 1,982,307.74 and 422,837.69

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Solution

The fourth proportional to 1,321,341.98, 1,982,307.74 and 422,837.69 is: 634,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,341.98 : 1,982,307.74 = 422,837.69 : x
  2. Step 2: Convert to fraction form
    1,321,341.98/1,982,307.74 = 422,837.69/x
  3. Step 3: Cross multiply
    1,321,341.98x = 1,982,307.74 × 422,837.69
  4. Step 4: Simplify right side
    1,321,341.98x = 838,194,413,624.99
  5. Step 5: Solve for x
    x = 838,194,413,624.99/1,321,341.98
  6. Step 6: Final answer
    x = 634,350.86

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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.