Home / 707,911.70-1,061,867.55-209,275.70

Finding the Fourth Proportional to 707,911.70, 1,061,867.55 and 209,275.70

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Solution

The fourth proportional to 707,911.70, 1,061,867.55 and 209,275.70 is: 313,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,911.70 : 1,061,867.55 = 209,275.70 : x
  2. Step 2: Convert to fraction form
    707,911.70/1,061,867.55 = 209,275.70/x
  3. Step 3: Cross multiply
    707,911.70x = 1,061,867.55 × 209,275.70
  4. Step 4: Simplify right side
    707,911.70x = 222,223,074,833.54
  5. Step 5: Solve for x
    x = 222,223,074,833.54/707,911.70
  6. Step 6: Final answer
    x = 313,913.55

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Double scale
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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.