Home / 639,124.03-882,009.62-352,662.57

Finding the Fourth Proportional to 639,124.03, 882,009.62 and 352,662.57

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Solution

The fourth proportional to 639,124.03, 882,009.62 and 352,662.57 is: 486,684.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,124.03 : 882,009.62 = 352,662.57 : x
  2. Step 2: Convert to fraction form
    639,124.03/882,009.62 = 352,662.57/x
  3. Step 3: Cross multiply
    639,124.03x = 882,009.62 × 352,662.57
  4. Step 4: Simplify right side
    639,124.03x = 311,051,778,913.10
  5. Step 5: Solve for x
    x = 311,051,778,913.10/639,124.03
  6. Step 6: Final answer
    x = 486,684.53

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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.