Home / 639,439.83-882,422.73-349,050.24

Finding the Fourth Proportional to 639,439.83, 882,422.73 and 349,050.24

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Solution

The fourth proportional to 639,439.83, 882,422.73 and 349,050.24 is: 481,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,439.83 : 882,422.73 = 349,050.24 : x
  2. Step 2: Convert to fraction form
    639,439.83/882,422.73 = 349,050.24/x
  3. Step 3: Cross multiply
    639,439.83x = 882,422.73 × 349,050.24
  4. Step 4: Simplify right side
    639,439.83x = 308,009,865,687.96
  5. Step 5: Solve for x
    x = 308,009,865,687.96/639,439.83
  6. Step 6: Final answer
    x = 481,687.02

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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.