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Finding the Fourth Proportional to 553,534.34, 763,859.31 and 349,693.79

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Solution

The fourth proportional to 553,534.34, 763,859.31 and 349,693.79 is: 482,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,534.34 : 763,859.31 = 349,693.79 : x
  2. Step 2: Convert to fraction form
    553,534.34/763,859.31 = 349,693.79/x
  3. Step 3: Cross multiply
    553,534.34x = 763,859.31 × 349,693.79
  4. Step 4: Simplify right side
    553,534.34x = 267,116,857,140.69
  5. Step 5: Solve for x
    x = 267,116,857,140.69/553,534.34
  6. Step 6: Final answer
    x = 482,566.01

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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.