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Finding the Fourth Proportional to 647,135.28, 893,048.04 and 360,649.62

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Solution

The fourth proportional to 647,135.28, 893,048.04 and 360,649.62 is: 497,697.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,135.28 : 893,048.04 = 360,649.62 : x
  2. Step 2: Convert to fraction form
    647,135.28/893,048.04 = 360,649.62/x
  3. Step 3: Cross multiply
    647,135.28x = 893,048.04 × 360,649.62
  4. Step 4: Simplify right side
    647,135.28x = 322,077,436,267.75
  5. Step 5: Solve for x
    x = 322,077,436,267.75/647,135.28
  6. Step 6: Final answer
    x = 497,697.23

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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.