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Finding the Fourth Proportional to 702,049.20, 985,357.20 and 702,049.20

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Solution

The fourth proportional to 702,049.20, 985,357.20 and 702,049.20 is: 985,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,049.20 : 985,357.20 = 702,049.20 : x
  2. Step 2: Convert to fraction form
    702,049.20/985,357.20 = 702,049.20/x
  3. Step 3: Cross multiply
    702,049.20x = 985,357.20 × 702,049.20
  4. Step 4: Simplify right side
    702,049.20x = 691,769,233,974.24
  5. Step 5: Solve for x
    x = 691,769,233,974.24/702,049.20
  6. Step 6: Final answer
    x = 985,357.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.