Home / 809,961.20-1,214,941.80-360,681.20

Finding the Fourth Proportional to 809,961.20, 1,214,941.80 and 360,681.20

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Solution

The fourth proportional to 809,961.20, 1,214,941.80 and 360,681.20 is: 541,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,961.20 : 1,214,941.80 = 360,681.20 : x
  2. Step 2: Convert to fraction form
    809,961.20/1,214,941.80 = 360,681.20/x
  3. Step 3: Cross multiply
    809,961.20x = 1,214,941.80 × 360,681.20
  4. Step 4: Simplify right side
    809,961.20x = 438,206,666,354.16
  5. Step 5: Solve for x
    x = 438,206,666,354.16/809,961.20
  6. Step 6: Final answer
    x = 541,021.80

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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.