Home / 1,424,940.30-2,137,410.45-359,985.42

Finding the Fourth Proportional to 1,424,940.30, 2,137,410.45 and 359,985.42

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Solution

The fourth proportional to 1,424,940.30, 2,137,410.45 and 359,985.42 is: 539,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,940.30 : 2,137,410.45 = 359,985.42 : x
  2. Step 2: Convert to fraction form
    1,424,940.30/2,137,410.45 = 359,985.42/x
  3. Step 3: Cross multiply
    1,424,940.30x = 2,137,410.45 × 359,985.42
  4. Step 4: Simplify right side
    1,424,940.30x = 769,436,598,555.64
  5. Step 5: Solve for x
    x = 769,436,598,555.64/1,424,940.30
  6. Step 6: Final answer
    x = 539,978.13

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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.