Home / 815,712.06-1,125,816.39-471,559.26

Finding the Fourth Proportional to 815,712.06, 1,125,816.39 and 471,559.26

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Solution

The fourth proportional to 815,712.06, 1,125,816.39 and 471,559.26 is: 650,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,712.06 : 1,125,816.39 = 471,559.26 : x
  2. Step 2: Convert to fraction form
    815,712.06/1,125,816.39 = 471,559.26/x
  3. Step 3: Cross multiply
    815,712.06x = 1,125,816.39 × 471,559.26
  4. Step 4: Simplify right side
    815,712.06x = 530,889,143,764.27
  5. Step 5: Solve for x
    x = 530,889,143,764.27/815,712.06
  6. Step 6: Final answer
    x = 650,829.10

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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.