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Finding the Fourth Proportional to 668,755.85, 922,899.02 and 382,302.59

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Solution

The fourth proportional to 668,755.85, 922,899.02 and 382,302.59 is: 527,586.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,755.85 : 922,899.02 = 382,302.59 : x
  2. Step 2: Convert to fraction form
    668,755.85/922,899.02 = 382,302.59/x
  3. Step 3: Cross multiply
    668,755.85x = 922,899.02 × 382,302.59
  4. Step 4: Simplify right side
    668,755.85x = 352,826,679,128.45
  5. Step 5: Solve for x
    x = 352,826,679,128.45/668,755.85
  6. Step 6: Final answer
    x = 527,586.68

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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.