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Finding the Fourth Proportional to 559,214.72, 771,792.42 and 329,836.88

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Solution

The fourth proportional to 559,214.72, 771,792.42 and 329,836.88 is: 455,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,214.72 : 771,792.42 = 329,836.88 : x
  2. Step 2: Convert to fraction form
    559,214.72/771,792.42 = 329,836.88/x
  3. Step 3: Cross multiply
    559,214.72x = 771,792.42 × 329,836.88
  4. Step 4: Simplify right side
    559,214.72x = 254,565,603,820.45
  5. Step 5: Solve for x
    x = 254,565,603,820.45/559,214.72
  6. Step 6: Final answer
    x = 455,219.78

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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.