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Finding the Fourth Proportional to 654,680.41, 903,354.89 and 368,145.14

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Solution

The fourth proportional to 654,680.41, 903,354.89 and 368,145.14 is: 507,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,680.41 : 903,354.89 = 368,145.14 : x
  2. Step 2: Convert to fraction form
    654,680.41/903,354.89 = 368,145.14/x
  3. Step 3: Cross multiply
    654,680.41x = 903,354.89 × 368,145.14
  4. Step 4: Simplify right side
    654,680.41x = 332,565,707,170.71
  5. Step 5: Solve for x
    x = 332,565,707,170.71/654,680.41
  6. Step 6: Final answer
    x = 507,981.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.