Home / 921,998.52-1,382,208.94-353,787.38

Finding the Fourth Proportional to 921,998.52, 1,382,208.94 and 353,787.38

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Solution

The fourth proportional to 921,998.52, 1,382,208.94 and 353,787.38 is: 530,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,998.52 : 1,382,208.94 = 353,787.38 : x
  2. Step 2: Convert to fraction form
    921,998.52/1,382,208.94 = 353,787.38/x
  3. Step 3: Cross multiply
    921,998.52x = 1,382,208.94 × 353,787.38
  4. Step 4: Simplify right side
    921,998.52x = 489,008,079,495.18
  5. Step 5: Solve for x
    x = 489,008,079,495.18/921,998.52
  6. Step 6: Final answer
    x = 530,378.38

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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.