Home / 761,022.74-1,140,708.72-381,027.05

Finding the Fourth Proportional to 761,022.74, 1,140,708.72 and 381,027.05

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Solution

The fourth proportional to 761,022.74, 1,140,708.72 and 381,027.05 is: 571,127.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,022.74 : 1,140,708.72 = 381,027.05 : x
  2. Step 2: Convert to fraction form
    761,022.74/1,140,708.72 = 381,027.05/x
  3. Step 3: Cross multiply
    761,022.74x = 1,140,708.72 × 381,027.05
  4. Step 4: Simplify right side
    761,022.74x = 434,640,872,787.33
  5. Step 5: Solve for x
    x = 434,640,872,787.33/761,022.74
  6. Step 6: Final answer
    x = 571,127.32

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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.