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Finding the Fourth Proportional to 611,756.28, 844,229.34 and 357,057.72

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Solution

The fourth proportional to 611,756.28, 844,229.34 and 357,057.72 is: 492,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,756.28 : 844,229.34 = 357,057.72 : x
  2. Step 2: Convert to fraction form
    611,756.28/844,229.34 = 357,057.72/x
  3. Step 3: Cross multiply
    611,756.28x = 844,229.34 × 357,057.72
  4. Step 4: Simplify right side
    611,756.28x = 301,438,603,297.51
  5. Step 5: Solve for x
    x = 301,438,603,297.51/611,756.28
  6. Step 6: Final answer
    x = 492,742.97

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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.