Home / 639,661.14-882,746.10-353,199.24

Finding the Fourth Proportional to 639,661.14, 882,746.10 and 353,199.24

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Solution

The fourth proportional to 639,661.14, 882,746.10 and 353,199.24 is: 487,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,661.14 : 882,746.10 = 353,199.24 : x
  2. Step 2: Convert to fraction form
    639,661.14/882,746.10 = 353,199.24/x
  3. Step 3: Cross multiply
    639,661.14x = 882,746.10 × 353,199.24
  4. Step 4: Simplify right side
    639,661.14x = 311,785,251,632.96
  5. Step 5: Solve for x
    x = 311,785,251,632.96/639,661.14
  6. Step 6: Final answer
    x = 487,422.53

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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.