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Finding the Fourth Proportional to 647,380.04, 893,388.28 and 375,609.76

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Solution

The fourth proportional to 647,380.04, 893,388.28 and 375,609.76 is: 518,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,380.04 : 893,388.28 = 375,609.76 : x
  2. Step 2: Convert to fraction form
    647,380.04/893,388.28 = 375,609.76/x
  3. Step 3: Cross multiply
    647,380.04x = 893,388.28 × 375,609.76
  4. Step 4: Simplify right side
    647,380.04x = 335,565,354,265.12
  5. Step 5: Solve for x
    x = 335,565,354,265.12/647,380.04
  6. Step 6: Final answer
    x = 518,343.68

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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.