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Finding the Fourth Proportional to 658,730.88, 909,052.20 and 356,924.88

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Solution

The fourth proportional to 658,730.88, 909,052.20 and 356,924.88 is: 492,558.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,730.88 : 909,052.20 = 356,924.88 : x
  2. Step 2: Convert to fraction form
    658,730.88/909,052.20 = 356,924.88/x
  3. Step 3: Cross multiply
    658,730.88x = 909,052.20 × 356,924.88
  4. Step 4: Simplify right side
    658,730.88x = 324,463,347,398.74
  5. Step 5: Solve for x
    x = 324,463,347,398.74/658,730.88
  6. Step 6: Final answer
    x = 492,558.28

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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.