Home / 757,891.90-1,136,165.40-278,009.32

Finding the Fourth Proportional to 757,891.90, 1,136,165.40 and 278,009.32

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Solution

The fourth proportional to 757,891.90, 1,136,165.40 and 278,009.32 is: 416,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,891.90 : 1,136,165.40 = 278,009.32 : x
  2. Step 2: Convert to fraction form
    757,891.90/1,136,165.40 = 278,009.32/x
  3. Step 3: Cross multiply
    757,891.90x = 1,136,165.40 × 278,009.32
  4. Step 4: Simplify right side
    757,891.90x = 315,864,566,462.17
  5. Step 5: Solve for x
    x = 315,864,566,462.17/757,891.90
  6. Step 6: Final answer
    x = 416,767.31

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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.