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Finding the Fourth Proportional to 824,394.40, 1,236,737.40 and 292,224.40

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Solution

The fourth proportional to 824,394.40, 1,236,737.40 and 292,224.40 is: 438,388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,394.40 : 1,236,737.40 = 292,224.40 : x
  2. Step 2: Convert to fraction form
    824,394.40/1,236,737.40 = 292,224.40/x
  3. Step 3: Cross multiply
    824,394.40x = 1,236,737.40 × 292,224.40
  4. Step 4: Simplify right side
    824,394.40x = 361,404,844,672.56
  5. Step 5: Solve for x
    x = 361,404,844,672.56/824,394.40
  6. Step 6: Final answer
    x = 438,388.28

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1.5x scale

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.