Home / 705,128.16-1,058,112.40-255,884.06

Finding the Fourth Proportional to 705,128.16, 1,058,112.40 and 255,884.06

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Solution

The fourth proportional to 705,128.16, 1,058,112.40 and 255,884.06 is: 383,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,128.16 : 1,058,112.40 = 255,884.06 : x
  2. Step 2: Convert to fraction form
    705,128.16/1,058,112.40 = 255,884.06/x
  3. Step 3: Cross multiply
    705,128.16x = 1,058,112.40 × 255,884.06
  4. Step 4: Simplify right side
    705,128.16x = 270,754,096,848.34
  5. Step 5: Solve for x
    x = 270,754,096,848.34/705,128.16
  6. Step 6: Final answer
    x = 383,978.56

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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.