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Finding the Fourth Proportional to 665,034, 917,746.92 and 363,228.72

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Solution

The fourth proportional to 665,034, 917,746.92 and 363,228.72 is: 501,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,034 : 917,746.92 = 363,228.72 : x
  2. Step 2: Convert to fraction form
    665,034/917,746.92 = 363,228.72/x
  3. Step 3: Cross multiply
    665,034x = 917,746.92 × 363,228.72
  4. Step 4: Simplify right side
    665,034x = 333,352,039,035.54
  5. Step 5: Solve for x
    x = 333,352,039,035.54/665,034
  6. Step 6: Final answer
    x = 501,255.63

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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.