Home / 921,786.41-1,382,679.65-290,749.43

Finding the Fourth Proportional to 921,786.41, 1,382,679.65 and 290,749.43

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Solution

The fourth proportional to 921,786.41, 1,382,679.65 and 290,749.43 is: 436,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,786.41 : 1,382,679.65 = 290,749.43 : x
  2. Step 2: Convert to fraction form
    921,786.41/1,382,679.65 = 290,749.43/x
  3. Step 3: Cross multiply
    921,786.41x = 1,382,679.65 × 290,749.43
  4. Step 4: Simplify right side
    921,786.41x = 402,013,324,293.67
  5. Step 5: Solve for x
    x = 402,013,324,293.67/921,786.41
  6. Step 6: Final answer
    x = 436,124.16

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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.