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Finding the Fourth Proportional to 347,801.10, 487,971.30 and 347,801.10

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Solution

The fourth proportional to 347,801.10, 487,971.30 and 347,801.10 is: 487,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,801.10 : 487,971.30 = 347,801.10 : x
  2. Step 2: Convert to fraction form
    347,801.10/487,971.30 = 347,801.10/x
  3. Step 3: Cross multiply
    347,801.10x = 487,971.30 × 347,801.10
  4. Step 4: Simplify right side
    347,801.10x = 169,716,954,908.43
  5. Step 5: Solve for x
    x = 169,716,954,908.43/347,801.10
  6. Step 6: Final answer
    x = 487,971.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.