Home / 639,502.35-882,513.39-353,022.63

Finding the Fourth Proportional to 639,502.35, 882,513.39 and 353,022.63

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Solution

The fourth proportional to 639,502.35, 882,513.39 and 353,022.63 is: 487,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,502.35 : 882,513.39 = 353,022.63 : x
  2. Step 2: Convert to fraction form
    639,502.35/882,513.39 = 353,022.63/x
  3. Step 3: Cross multiply
    639,502.35x = 882,513.39 × 353,022.63
  4. Step 4: Simplify right side
    639,502.35x = 311,547,197,948.02
  5. Step 5: Solve for x
    x = 311,547,197,948.02/639,502.35
  6. Step 6: Final answer
    x = 487,171.31

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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.