Home / 921,781.94-1,382,672.93-290,744.96

Finding the Fourth Proportional to 921,781.94, 1,382,672.93 and 290,744.96

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Solution

The fourth proportional to 921,781.94, 1,382,672.93 and 290,744.96 is: 436,117.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,781.94 : 1,382,672.93 = 290,744.96 : x
  2. Step 2: Convert to fraction form
    921,781.94/1,382,672.93 = 290,744.96/x
  3. Step 3: Cross multiply
    921,781.94x = 1,382,672.93 × 290,744.96
  4. Step 4: Simplify right side
    921,781.94x = 402,005,177,358.84
  5. Step 5: Solve for x
    x = 402,005,177,358.84/921,781.94
  6. Step 6: Final answer
    x = 436,117.44

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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.