Home / 639,107.10-881,967.12-352,627.16

Finding the Fourth Proportional to 639,107.10, 881,967.12 and 352,627.16

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Solution

The fourth proportional to 639,107.10, 881,967.12 and 352,627.16 is: 486,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,107.10 : 881,967.12 = 352,627.16 : x
  2. Step 2: Convert to fraction form
    639,107.10/881,967.12 = 352,627.16/x
  3. Step 3: Cross multiply
    639,107.10x = 881,967.12 × 352,627.16
  4. Step 4: Simplify right side
    639,107.10x = 311,005,556,329.14
  5. Step 5: Solve for x
    x = 311,005,556,329.14/639,107.10
  6. Step 6: Final answer
    x = 486,625.10

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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.