Home / 485,811.87-670,421.58-270,965.85

Finding the Fourth Proportional to 485,811.87, 670,421.58 and 270,965.85

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Solution

The fourth proportional to 485,811.87, 670,421.58 and 270,965.85 is: 373,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,811.87 : 670,421.58 = 270,965.85 : x
  2. Step 2: Convert to fraction form
    485,811.87/670,421.58 = 270,965.85/x
  3. Step 3: Cross multiply
    485,811.87x = 670,421.58 × 270,965.85
  4. Step 4: Simplify right side
    485,811.87x = 181,661,353,283.04
  5. Step 5: Solve for x
    x = 181,661,353,283.04/485,811.87
  6. Step 6: Final answer
    x = 373,933.54

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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.