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Finding the Fourth Proportional to 663,637.34, 996,452.91 and 379,648.50

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Solution

The fourth proportional to 663,637.34, 996,452.91 and 379,648.50 is: 570,043.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,637.34 : 996,452.91 = 379,648.50 : x
  2. Step 2: Convert to fraction form
    663,637.34/996,452.91 = 379,648.50/x
  3. Step 3: Cross multiply
    663,637.34x = 996,452.91 × 379,648.50
  4. Step 4: Simplify right side
    663,637.34x = 378,301,852,602.14
  5. Step 5: Solve for x
    x = 378,301,852,602.14/663,637.34
  6. Step 6: Final answer
    x = 570,043.05

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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.