Home / 810,933.20-1,119,042.60-448,335.92

Finding the Fourth Proportional to 810,933.20, 1,119,042.60 and 448,335.92

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Solution

The fourth proportional to 810,933.20, 1,119,042.60 and 448,335.92 is: 618,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,933.20 : 1,119,042.60 = 448,335.92 : x
  2. Step 2: Convert to fraction form
    810,933.20/1,119,042.60 = 448,335.92/x
  3. Step 3: Cross multiply
    810,933.20x = 1,119,042.60 × 448,335.92
  4. Step 4: Simplify right side
    810,933.20x = 501,706,993,590.19
  5. Step 5: Solve for x
    x = 501,706,993,590.19/810,933.20
  6. Step 6: Final answer
    x = 618,678.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.