Home / 627,032.47-865,275.85-355,102.31

Finding the Fourth Proportional to 627,032.47, 865,275.85 and 355,102.31

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Solution

The fourth proportional to 627,032.47, 865,275.85 and 355,102.31 is: 490,024.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,032.47 : 865,275.85 = 355,102.31 : x
  2. Step 2: Convert to fraction form
    627,032.47/865,275.85 = 355,102.31/x
  3. Step 3: Cross multiply
    627,032.47x = 865,275.85 × 355,102.31
  4. Step 4: Simplify right side
    627,032.47x = 307,261,456,858.19
  5. Step 5: Solve for x
    x = 307,261,456,858.19/627,032.47
  6. Step 6: Final answer
    x = 490,024.79

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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.