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Finding the Fourth Proportional to 484,124.22, 668,044.62 and 280,134.45

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Solution

The fourth proportional to 484,124.22, 668,044.62 and 280,134.45 is: 386,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,124.22 : 668,044.62 = 280,134.45 : x
  2. Step 2: Convert to fraction form
    484,124.22/668,044.62 = 280,134.45/x
  3. Step 3: Cross multiply
    484,124.22x = 668,044.62 × 280,134.45
  4. Step 4: Simplify right side
    484,124.22x = 187,142,312,199.16
  5. Step 5: Solve for x
    x = 187,142,312,199.16/484,124.22
  6. Step 6: Final answer
    x = 386,558.46

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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.