Home / 766,719.02-1,058,079.39-422,567.22

Finding the Fourth Proportional to 766,719.02, 1,058,079.39 and 422,567.22

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Solution

The fourth proportional to 766,719.02, 1,058,079.39 and 422,567.22 is: 583,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,719.02 : 1,058,079.39 = 422,567.22 : x
  2. Step 2: Convert to fraction form
    766,719.02/1,058,079.39 = 422,567.22/x
  3. Step 3: Cross multiply
    766,719.02x = 1,058,079.39 × 422,567.22
  4. Step 4: Simplify right side
    766,719.02x = 447,109,666,371.60
  5. Step 5: Solve for x
    x = 447,109,666,371.60/766,719.02
  6. Step 6: Final answer
    x = 583,146.70

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1.5x scale

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.