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Finding the Fourth Proportional to 619,282.62, 928,700.98 and 214,364.81

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Solution

The fourth proportional to 619,282.62, 928,700.98 and 214,364.81 is: 321,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,282.62 : 928,700.98 = 214,364.81 : x
  2. Step 2: Convert to fraction form
    619,282.62/928,700.98 = 214,364.81/x
  3. Step 3: Cross multiply
    619,282.62x = 928,700.98 × 214,364.81
  4. Step 4: Simplify right side
    619,282.62x = 199,080,809,124.51
  5. Step 5: Solve for x
    x = 199,080,809,124.51/619,282.62
  6. Step 6: Final answer
    x = 321,470.04

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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.