Home / 981,555.21-1,360,011.65-960,297.57

Finding the Fourth Proportional to 981,555.21, 1,360,011.65 and 960,297.57

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Solution

The fourth proportional to 981,555.21, 1,360,011.65 and 960,297.57 is: 1,330,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,555.21 : 1,360,011.65 = 960,297.57 : x
  2. Step 2: Convert to fraction form
    981,555.21/1,360,011.65 = 960,297.57/x
  3. Step 3: Cross multiply
    981,555.21x = 1,360,011.65 × 960,297.57
  4. Step 4: Simplify right side
    981,555.21x = 1,306,015,877,865.20
  5. Step 5: Solve for x
    x = 1,306,015,877,865.20/981,555.21
  6. Step 6: Final answer
    x = 1,330,557.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.