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Finding the Fourth Proportional to 893,636.80, 1,341,410.16 and 361,505.68

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Solution

The fourth proportional to 893,636.80, 1,341,410.16 and 361,505.68 is: 542,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,636.80 : 1,341,410.16 = 361,505.68 : x
  2. Step 2: Convert to fraction form
    893,636.80/1,341,410.16 = 361,505.68/x
  3. Step 3: Cross multiply
    893,636.80x = 1,341,410.16 × 361,505.68
  4. Step 4: Simplify right side
    893,636.80x = 484,927,392,049.71
  5. Step 5: Solve for x
    x = 484,927,392,049.71/893,636.80
  6. Step 6: Final answer
    x = 542,644.83

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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.