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Finding the Fourth Proportional to 639,026.16, 881,850.24 and 352,548.48

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Solution

The fourth proportional to 639,026.16, 881,850.24 and 352,548.48 is: 486,513.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,026.16 : 881,850.24 = 352,548.48 : x
  2. Step 2: Convert to fraction form
    639,026.16/881,850.24 = 352,548.48/x
  3. Step 3: Cross multiply
    639,026.16x = 881,850.24 × 352,548.48
  4. Step 4: Simplify right side
    639,026.16x = 310,894,961,699.64
  5. Step 5: Solve for x
    x = 310,894,961,699.64/639,026.16
  6. Step 6: Final answer
    x = 486,513.67

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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.