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Finding the Fourth Proportional to 668,597.50, 1,002,779.70 and 308,737.72

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Solution

The fourth proportional to 668,597.50, 1,002,779.70 and 308,737.72 is: 463,052.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,597.50 : 1,002,779.70 = 308,737.72 : x
  2. Step 2: Convert to fraction form
    668,597.50/1,002,779.70 = 308,737.72/x
  3. Step 3: Cross multiply
    668,597.50x = 1,002,779.70 × 308,737.72
  4. Step 4: Simplify right side
    668,597.50x = 309,595,918,240.28
  5. Step 5: Solve for x
    x = 309,595,918,240.28/668,597.50
  6. Step 6: Final answer
    x = 463,052.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.