Home / 1,389,581.80-2,084,487.90-442,925.80

Finding the Fourth Proportional to 1,389,581.80, 2,084,487.90 and 442,925.80

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Solution

The fourth proportional to 1,389,581.80, 2,084,487.90 and 442,925.80 is: 664,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,581.80 : 2,084,487.90 = 442,925.80 : x
  2. Step 2: Convert to fraction form
    1,389,581.80/2,084,487.90 = 442,925.80/x
  3. Step 3: Cross multiply
    1,389,581.80x = 2,084,487.90 × 442,925.80
  4. Step 4: Simplify right side
    1,389,581.80x = 923,273,470,697.82
  5. Step 5: Solve for x
    x = 923,273,470,697.82/1,389,581.80
  6. Step 6: Final answer
    x = 664,425.42

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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.