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Finding the Fourth Proportional to 647,100.90, 893,007.99 and 360,611.19

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Solution

The fourth proportional to 647,100.90, 893,007.99 and 360,611.19 is: 497,648.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,100.90 : 893,007.99 = 360,611.19 : x
  2. Step 2: Convert to fraction form
    647,100.90/893,007.99 = 360,611.19/x
  3. Step 3: Cross multiply
    647,100.90x = 893,007.99 × 360,611.19
  4. Step 4: Simplify right side
    647,100.90x = 322,028,673,953.41
  5. Step 5: Solve for x
    x = 322,028,673,953.41/647,100.90
  6. Step 6: Final answer
    x = 497,648.32

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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.