Home / 755,768.90-1,128,123.84-666,091.37

Finding the Fourth Proportional to 755,768.90, 1,128,123.84 and 666,091.37

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Solution

The fourth proportional to 755,768.90, 1,128,123.84 and 666,091.37 is: 994,263.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,768.90 : 1,128,123.84 = 666,091.37 : x
  2. Step 2: Convert to fraction form
    755,768.90/1,128,123.84 = 666,091.37/x
  3. Step 3: Cross multiply
    755,768.90x = 1,128,123.84 × 666,091.37
  4. Step 4: Simplify right side
    755,768.90x = 751,433,548,474.64
  5. Step 5: Solve for x
    x = 751,433,548,474.64/755,768.90
  6. Step 6: Final answer
    x = 994,263.66

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1.5x scale

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.