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Finding the Fourth Proportional to 561,378.36, 775,219.50 and 360,524.28

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Solution

The fourth proportional to 561,378.36, 775,219.50 and 360,524.28 is: 497,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,378.36 : 775,219.50 = 360,524.28 : x
  2. Step 2: Convert to fraction form
    561,378.36/775,219.50 = 360,524.28/x
  3. Step 3: Cross multiply
    561,378.36x = 775,219.50 × 360,524.28
  4. Step 4: Simplify right side
    561,378.36x = 279,485,452,079.46
  5. Step 5: Solve for x
    x = 279,485,452,079.46/561,378.36
  6. Step 6: Final answer
    x = 497,855.76

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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.