Home / 516,216.40-774,324.60-485,112.40

Finding the Fourth Proportional to 516,216.40, 774,324.60 and 485,112.40

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Solution

The fourth proportional to 516,216.40, 774,324.60 and 485,112.40 is: 727,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,216.40 : 774,324.60 = 485,112.40 : x
  2. Step 2: Convert to fraction form
    516,216.40/774,324.60 = 485,112.40/x
  3. Step 3: Cross multiply
    516,216.40x = 774,324.60 × 485,112.40
  4. Step 4: Simplify right side
    516,216.40x = 375,634,465,085.04
  5. Step 5: Solve for x
    x = 375,634,465,085.04/516,216.40
  6. Step 6: Final answer
    x = 727,668.60

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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.