Home / 864,785.54-1,297,045.24-288,418.97

Finding the Fourth Proportional to 864,785.54, 1,297,045.24 and 288,418.97

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Solution

The fourth proportional to 864,785.54, 1,297,045.24 and 288,418.97 is: 432,584.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,785.54 : 1,297,045.24 = 288,418.97 : x
  2. Step 2: Convert to fraction form
    864,785.54/1,297,045.24 = 288,418.97/x
  3. Step 3: Cross multiply
    864,785.54x = 1,297,045.24 × 288,418.97
  4. Step 4: Simplify right side
    864,785.54x = 374,092,452,164.20
  5. Step 5: Solve for x
    x = 374,092,452,164.20/864,785.54
  6. Step 6: Final answer
    x = 432,584.07

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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.