Home / 761,945.22-1,142,917.85-256,463.87

Finding the Fourth Proportional to 761,945.22, 1,142,917.85 and 256,463.87

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Solution

The fourth proportional to 761,945.22, 1,142,917.85 and 256,463.87 is: 384,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,945.22 : 1,142,917.85 = 256,463.87 : x
  2. Step 2: Convert to fraction form
    761,945.22/1,142,917.85 = 256,463.87/x
  3. Step 3: Cross multiply
    761,945.22x = 1,142,917.85 × 256,463.87
  4. Step 4: Simplify right side
    761,945.22x = 293,117,134,815.95
  5. Step 5: Solve for x
    x = 293,117,134,815.95/761,945.22
  6. Step 6: Final answer
    x = 384,695.81

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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.