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Finding the Fourth Proportional to 647,221.83, 893,170.26 and 360,760.07

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Solution

The fourth proportional to 647,221.83, 893,170.26 and 360,760.07 is: 497,851.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,221.83 : 893,170.26 = 360,760.07 : x
  2. Step 2: Convert to fraction form
    647,221.83/893,170.26 = 360,760.07/x
  3. Step 3: Cross multiply
    647,221.83x = 893,170.26 × 360,760.07
  4. Step 4: Simplify right side
    647,221.83x = 322,220,161,053.67
  5. Step 5: Solve for x
    x = 322,220,161,053.67/647,221.83
  6. Step 6: Final answer
    x = 497,851.19

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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.