Home / 1,078,769.88-1,617,678.20-404,378.15

Finding the Fourth Proportional to 1,078,769.88, 1,617,678.20 and 404,378.15

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Solution

The fourth proportional to 1,078,769.88, 1,617,678.20 and 404,378.15 is: 606,388.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,769.88 : 1,617,678.20 = 404,378.15 : x
  2. Step 2: Convert to fraction form
    1,078,769.88/1,617,678.20 = 404,378.15/x
  3. Step 3: Cross multiply
    1,078,769.88x = 1,617,678.20 × 404,378.15
  4. Step 4: Simplify right side
    1,078,769.88x = 654,153,710,733.88
  5. Step 5: Solve for x
    x = 654,153,710,733.88/1,078,769.88
  6. Step 6: Final answer
    x = 606,388.56

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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.