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Finding the Fourth Proportional to 695,270.57, 959,334.71 and 423,156.20

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Solution

The fourth proportional to 695,270.57, 959,334.71 and 423,156.20 is: 583,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,270.57 : 959,334.71 = 423,156.20 : x
  2. Step 2: Convert to fraction form
    695,270.57/959,334.71 = 423,156.20/x
  3. Step 3: Cross multiply
    695,270.57x = 959,334.71 × 423,156.20
  4. Step 4: Simplify right side
    695,270.57x = 405,948,423,499.25
  5. Step 5: Solve for x
    x = 405,948,423,499.25/695,270.57
  6. Step 6: Final answer
    x = 583,871.15

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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.