Home / 1,389,314.80-2,084,087.40-442,658.80

Finding the Fourth Proportional to 1,389,314.80, 2,084,087.40 and 442,658.80

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Solution

The fourth proportional to 1,389,314.80, 2,084,087.40 and 442,658.80 is: 664,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,314.80 : 2,084,087.40 = 442,658.80 : x
  2. Step 2: Convert to fraction form
    1,389,314.80/2,084,087.40 = 442,658.80/x
  3. Step 3: Cross multiply
    1,389,314.80x = 2,084,087.40 × 442,658.80
  4. Step 4: Simplify right side
    1,389,314.80x = 922,539,627,579.12
  5. Step 5: Solve for x
    x = 922,539,627,579.12/1,389,314.80
  6. Step 6: Final answer
    x = 664,024.90

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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.