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Finding the Fourth Proportional to 625,051.48, 937,620.96 and 309,423.64

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Solution

The fourth proportional to 625,051.48, 937,620.96 and 309,423.64 is: 464,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,051.48 : 937,620.96 = 309,423.64 : x
  2. Step 2: Convert to fraction form
    625,051.48/937,620.96 = 309,423.64/x
  3. Step 3: Cross multiply
    625,051.48x = 937,620.96 × 309,423.64
  4. Step 4: Simplify right side
    625,051.48x = 290,122,090,383.49
  5. Step 5: Solve for x
    x = 290,122,090,383.49/625,051.48
  6. Step 6: Final answer
    x = 464,157.11

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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.