Home / 780,660.73-1,077,609.09-508,794.76

Finding the Fourth Proportional to 780,660.73, 1,077,609.09 and 508,794.76

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Solution

The fourth proportional to 780,660.73, 1,077,609.09 and 508,794.76 is: 702,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,660.73 : 1,077,609.09 = 508,794.76 : x
  2. Step 2: Convert to fraction form
    780,660.73/1,077,609.09 = 508,794.76/x
  3. Step 3: Cross multiply
    780,660.73x = 1,077,609.09 × 508,794.76
  4. Step 4: Simplify right side
    780,660.73x = 548,281,858,320.37
  5. Step 5: Solve for x
    x = 548,281,858,320.37/780,660.73
  6. Step 6: Final answer
    x = 702,330.52

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Double scale
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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.