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Finding the Fourth Proportional to 662,690.10, 994,553.55 and 307,748.10

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Solution

The fourth proportional to 662,690.10, 994,553.55 and 307,748.10 is: 461,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,690.10 : 994,553.55 = 307,748.10 : x
  2. Step 2: Convert to fraction form
    662,690.10/994,553.55 = 307,748.10/x
  3. Step 3: Cross multiply
    662,690.10x = 994,553.55 × 307,748.10
  4. Step 4: Simplify right side
    662,690.10x = 306,071,965,360.76
  5. Step 5: Solve for x
    x = 306,071,965,360.76/662,690.10
  6. Step 6: Final answer
    x = 461,862.89

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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.