Home / 850,073.80-1,275,110.70-289,108.30

Finding the Fourth Proportional to 850,073.80, 1,275,110.70 and 289,108.30

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Solution

The fourth proportional to 850,073.80, 1,275,110.70 and 289,108.30 is: 433,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,073.80 : 1,275,110.70 = 289,108.30 : x
  2. Step 2: Convert to fraction form
    850,073.80/1,275,110.70 = 289,108.30/x
  3. Step 3: Cross multiply
    850,073.80x = 1,275,110.70 × 289,108.30
  4. Step 4: Simplify right side
    850,073.80x = 368,645,086,788.81
  5. Step 5: Solve for x
    x = 368,645,086,788.81/850,073.80
  6. Step 6: Final answer
    x = 433,662.45

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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.