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Finding the Fourth Proportional to 354,672.79, 489,320.57 and 273,026.01

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Solution

The fourth proportional to 354,672.79, 489,320.57 and 273,026.01 is: 376,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,672.79 : 489,320.57 = 273,026.01 : x
  2. Step 2: Convert to fraction form
    354,672.79/489,320.57 = 273,026.01/x
  3. Step 3: Cross multiply
    354,672.79x = 489,320.57 × 273,026.01
  4. Step 4: Simplify right side
    354,672.79x = 133,597,242,838.03
  5. Step 5: Solve for x
    x = 133,597,242,838.03/354,672.79
  6. Step 6: Final answer
    x = 376,677.45

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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.