Home / 922,021.20-1,383,031.80-290,998.80

Finding the Fourth Proportional to 922,021.20, 1,383,031.80 and 290,998.80

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Solution

The fourth proportional to 922,021.20, 1,383,031.80 and 290,998.80 is: 436,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,021.20 : 1,383,031.80 = 290,998.80 : x
  2. Step 2: Convert to fraction form
    922,021.20/1,383,031.80 = 290,998.80/x
  3. Step 3: Cross multiply
    922,021.20x = 1,383,031.80 × 290,998.80
  4. Step 4: Simplify right side
    922,021.20x = 402,460,594,161.84
  5. Step 5: Solve for x
    x = 402,460,594,161.84/922,021.20
  6. Step 6: Final answer
    x = 436,498.20

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Similar ratio
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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.