Home / 1,121,261.23-1,681,891.83-641,152.24

Finding the Fourth Proportional to 1,121,261.23, 1,681,891.83 and 641,152.24

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Solution

The fourth proportional to 1,121,261.23, 1,681,891.83 and 641,152.24 is: 961,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,261.23 : 1,681,891.83 = 641,152.24 : x
  2. Step 2: Convert to fraction form
    1,121,261.23/1,681,891.83 = 641,152.24/x
  3. Step 3: Cross multiply
    1,121,261.23x = 1,681,891.83 × 641,152.24
  4. Step 4: Simplify right side
    1,121,261.23x = 1,078,348,714,242.20
  5. Step 5: Solve for x
    x = 1,078,348,714,242.20/1,121,261.23
  6. Step 6: Final answer
    x = 961,728.35

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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.