Home / 621,150.42-857,182.32-349,219.50

Finding the Fourth Proportional to 621,150.42, 857,182.32 and 349,219.50

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Solution

The fourth proportional to 621,150.42, 857,182.32 and 349,219.50 is: 481,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,150.42 : 857,182.32 = 349,219.50 : x
  2. Step 2: Convert to fraction form
    621,150.42/857,182.32 = 349,219.50/x
  3. Step 3: Cross multiply
    621,150.42x = 857,182.32 × 349,219.50
  4. Step 4: Simplify right side
    621,150.42x = 299,344,781,199.24
  5. Step 5: Solve for x
    x = 299,344,781,199.24/621,150.42
  6. Step 6: Final answer
    x = 481,919.95

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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.