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Finding the Fourth Proportional to 575,293.82, 793,906.35 and 320,639.54

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Solution

The fourth proportional to 575,293.82, 793,906.35 and 320,639.54 is: 442,483.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,293.82 : 793,906.35 = 320,639.54 : x
  2. Step 2: Convert to fraction form
    575,293.82/793,906.35 = 320,639.54/x
  3. Step 3: Cross multiply
    575,293.82x = 793,906.35 × 320,639.54
  4. Step 4: Simplify right side
    575,293.82x = 254,557,767,258.26
  5. Step 5: Solve for x
    x = 254,557,767,258.26/575,293.82
  6. Step 6: Final answer
    x = 442,483.05

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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.