Home / 1,620,949.78-2,431,424.67-623,444.50

Finding the Fourth Proportional to 1,620,949.78, 2,431,424.67 and 623,444.50

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Solution

The fourth proportional to 1,620,949.78, 2,431,424.67 and 623,444.50 is: 935,166.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,949.78 : 2,431,424.67 = 623,444.50 : x
  2. Step 2: Convert to fraction form
    1,620,949.78/2,431,424.67 = 623,444.50/x
  3. Step 3: Cross multiply
    1,620,949.78x = 2,431,424.67 × 623,444.50
  4. Step 4: Simplify right side
    1,620,949.78x = 1,515,858,337,675.82
  5. Step 5: Solve for x
    x = 1,515,858,337,675.82/1,620,949.78
  6. Step 6: Final answer
    x = 935,166.75

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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.