Home / 970,067.56-1,338,515.82-540,336.76

Finding the Fourth Proportional to 970,067.56, 1,338,515.82 and 540,336.76

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Solution

The fourth proportional to 970,067.56, 1,338,515.82 and 540,336.76 is: 745,565.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,067.56 : 1,338,515.82 = 540,336.76 : x
  2. Step 2: Convert to fraction form
    970,067.56/1,338,515.82 = 540,336.76/x
  3. Step 3: Cross multiply
    970,067.56x = 1,338,515.82 × 540,336.76
  4. Step 4: Simplify right side
    970,067.56x = 723,249,301,387.54
  5. Step 5: Solve for x
    x = 723,249,301,387.54/970,067.56
  6. Step 6: Final answer
    x = 745,565.91

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.