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Finding the Fourth Proportional to 647,207.42, 893,147.22 and 360,721.35

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Solution

The fourth proportional to 647,207.42, 893,147.22 and 360,721.35 is: 497,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,207.42 : 893,147.22 = 360,721.35 : x
  2. Step 2: Convert to fraction form
    647,207.42/893,147.22 = 360,721.35/x
  3. Step 3: Cross multiply
    647,207.42x = 893,147.22 × 360,721.35
  4. Step 4: Simplify right side
    647,207.42x = 322,177,270,947.15
  5. Step 5: Solve for x
    x = 322,177,270,947.15/647,207.42
  6. Step 6: Final answer
    x = 497,796.01

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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.