Home / 728,478.54-1,092,455.28-307,787.22

Finding the Fourth Proportional to 728,478.54, 1,092,455.28 and 307,787.22

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Solution

The fourth proportional to 728,478.54, 1,092,455.28 and 307,787.22 is: 461,569.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,478.54 : 1,092,455.28 = 307,787.22 : x
  2. Step 2: Convert to fraction form
    728,478.54/1,092,455.28 = 307,787.22/x
  3. Step 3: Cross multiply
    728,478.54x = 1,092,455.28 × 307,787.22
  4. Step 4: Simplify right side
    728,478.54x = 336,243,773,605.52
  5. Step 5: Solve for x
    x = 336,243,773,605.52/728,478.54
  6. Step 6: Final answer
    x = 461,569.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.