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Finding the Fourth Proportional to 668,608.78, 922,676.52 and 362,691.22

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Solution

The fourth proportional to 668,608.78, 922,676.52 and 362,691.22 is: 500,511.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,608.78 : 922,676.52 = 362,691.22 : x
  2. Step 2: Convert to fraction form
    668,608.78/922,676.52 = 362,691.22/x
  3. Step 3: Cross multiply
    668,608.78x = 922,676.52 × 362,691.22
  4. Step 4: Simplify right side
    668,608.78x = 334,646,672,704.15
  5. Step 5: Solve for x
    x = 334,646,672,704.15/668,608.78
  6. Step 6: Final answer
    x = 500,511.93

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1.5x scale

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.