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Finding the Fourth Proportional to 457,892.79, 631,929.89 and 254,009.45

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Solution

The fourth proportional to 457,892.79, 631,929.89 and 254,009.45 is: 350,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,892.79 : 631,929.89 = 254,009.45 : x
  2. Step 2: Convert to fraction form
    457,892.79/631,929.89 = 254,009.45/x
  3. Step 3: Cross multiply
    457,892.79x = 631,929.89 × 254,009.45
  4. Step 4: Simplify right side
    457,892.79x = 160,516,163,797.46
  5. Step 5: Solve for x
    x = 160,516,163,797.46/457,892.79
  6. Step 6: Final answer
    x = 350,554.03

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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.