Home / 485,583.40-670,107.90-270,736.84

Finding the Fourth Proportional to 485,583.40, 670,107.90 and 270,736.84

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Solution

The fourth proportional to 485,583.40, 670,107.90 and 270,736.84 is: 373,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,583.40 : 670,107.90 = 270,736.84 : x
  2. Step 2: Convert to fraction form
    485,583.40/670,107.90 = 270,736.84/x
  3. Step 3: Cross multiply
    485,583.40x = 670,107.90 × 270,736.84
  4. Step 4: Simplify right side
    485,583.40x = 181,422,895,305.04
  5. Step 5: Solve for x
    x = 181,422,895,305.04/485,583.40
  6. Step 6: Final answer
    x = 373,618.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.