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Finding the Fourth Proportional to 348,760.84, 521,781.58 and 305,724.63

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Solution

The fourth proportional to 348,760.84, 521,781.58 and 305,724.63 is: 457,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,760.84 : 521,781.58 = 305,724.63 : x
  2. Step 2: Convert to fraction form
    348,760.84/521,781.58 = 305,724.63/x
  3. Step 3: Cross multiply
    348,760.84x = 521,781.58 × 305,724.63
  4. Step 4: Simplify right side
    348,760.84x = 159,521,480,486.32
  5. Step 5: Solve for x
    x = 159,521,480,486.32/348,760.84
  6. Step 6: Final answer
    x = 457,395.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.