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Finding the Fourth Proportional to 668,750.02, 922,939.86 and 382,215.49

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Solution

The fourth proportional to 668,750.02, 922,939.86 and 382,215.49 is: 527,494.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,750.02 : 922,939.86 = 382,215.49 : x
  2. Step 2: Convert to fraction form
    668,750.02/922,939.86 = 382,215.49/x
  3. Step 3: Cross multiply
    668,750.02x = 922,939.86 × 382,215.49
  4. Step 4: Simplify right side
    668,750.02x = 352,761,910,830.43
  5. Step 5: Solve for x
    x = 352,761,910,830.43/668,750.02
  6. Step 6: Final answer
    x = 527,494.43

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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.