Home / 766,719.02-1,058,079.42-422,567.56

Finding the Fourth Proportional to 766,719.02, 1,058,079.42 and 422,567.56

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Solution

The fourth proportional to 766,719.02, 1,058,079.42 and 422,567.56 is: 583,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,719.02 : 1,058,079.42 = 422,567.56 : x
  2. Step 2: Convert to fraction form
    766,719.02/1,058,079.42 = 422,567.56/x
  3. Step 3: Cross multiply
    766,719.02x = 1,058,079.42 × 422,567.56
  4. Step 4: Simplify right side
    766,719.02x = 447,110,038,795.62
  5. Step 5: Solve for x
    x = 447,110,038,795.62/766,719.02
  6. Step 6: Final answer
    x = 583,147.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.