Home / 755,814.65-1,128,192.10-666,137.12

Finding the Fourth Proportional to 755,814.65, 1,128,192.10 and 666,137.12

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Solution

The fourth proportional to 755,814.65, 1,128,192.10 and 666,137.12 is: 994,331.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,814.65 : 1,128,192.10 = 666,137.12 : x
  2. Step 2: Convert to fraction form
    755,814.65/1,128,192.10 = 666,137.12/x
  3. Step 3: Cross multiply
    755,814.65x = 1,128,192.10 × 666,137.12
  4. Step 4: Simplify right side
    755,814.65x = 751,530,628,994.45
  5. Step 5: Solve for x
    x = 751,530,628,994.45/755,814.65
  6. Step 6: Final answer
    x = 994,331.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.