Home / 777,055.90-1,072,320.99-432,891.36

Finding the Fourth Proportional to 777,055.90, 1,072,320.99 and 432,891.36

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Solution

The fourth proportional to 777,055.90, 1,072,320.99 and 432,891.36 is: 597,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,055.90 : 1,072,320.99 = 432,891.36 : x
  2. Step 2: Convert to fraction form
    777,055.90/1,072,320.99 = 432,891.36/x
  3. Step 3: Cross multiply
    777,055.90x = 1,072,320.99 × 432,891.36
  4. Step 4: Simplify right side
    777,055.90x = 464,198,491,717.65
  5. Step 5: Solve for x
    x = 464,198,491,717.65/777,055.90
  6. Step 6: Final answer
    x = 597,381.08

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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.