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Finding the Fourth Proportional to 647,484.13, 893,293.82 and 375,402.20

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Solution

The fourth proportional to 647,484.13, 893,293.82 and 375,402.20 is: 517,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,484.13 : 893,293.82 = 375,402.20 : x
  2. Step 2: Convert to fraction form
    647,484.13/893,293.82 = 375,402.20/x
  3. Step 3: Cross multiply
    647,484.13x = 893,293.82 × 375,402.20
  4. Step 4: Simplify right side
    647,484.13x = 335,344,460,338.68
  5. Step 5: Solve for x
    x = 335,344,460,338.68/647,484.13
  6. Step 6: Final answer
    x = 517,919.20

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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.