Home / 761,759.78-1,142,789.02-281,991.27

Finding the Fourth Proportional to 761,759.78, 1,142,789.02 and 281,991.27

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Solution

The fourth proportional to 761,759.78, 1,142,789.02 and 281,991.27 is: 423,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,759.78 : 1,142,789.02 = 281,991.27 : x
  2. Step 2: Convert to fraction form
    761,759.78/1,142,789.02 = 281,991.27/x
  3. Step 3: Cross multiply
    761,759.78x = 1,142,789.02 × 281,991.27
  4. Step 4: Simplify right side
    761,759.78x = 322,256,524,506.35
  5. Step 5: Solve for x
    x = 322,256,524,506.35/761,759.78
  6. Step 6: Final answer
    x = 423,042.19

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1.5x scale

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.