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Finding the Fourth Proportional to 639,486.96, 882,480.60 and 367,551.60

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Solution

The fourth proportional to 639,486.96, 882,480.60 and 367,551.60 is: 507,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,486.96 : 882,480.60 = 367,551.60 : x
  2. Step 2: Convert to fraction form
    639,486.96/882,480.60 = 367,551.60/x
  3. Step 3: Cross multiply
    639,486.96x = 882,480.60 × 367,551.60
  4. Step 4: Simplify right side
    639,486.96x = 324,357,156,498.96
  5. Step 5: Solve for x
    x = 324,357,156,498.96/639,486.96
  6. Step 6: Final answer
    x = 507,214.65

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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.