Home / 1,452,979.91-2,178,714.60-428,175.74

Finding the Fourth Proportional to 1,452,979.91, 2,178,714.60 and 428,175.74

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Solution

The fourth proportional to 1,452,979.91, 2,178,714.60 and 428,175.74 is: 642,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452,979.91 : 2,178,714.60 = 428,175.74 : x
  2. Step 2: Convert to fraction form
    1,452,979.91/2,178,714.60 = 428,175.74/x
  3. Step 3: Cross multiply
    1,452,979.91x = 2,178,714.60 × 428,175.74
  4. Step 4: Simplify right side
    1,452,979.91x = 932,872,741,550.59
  5. Step 5: Solve for x
    x = 932,872,741,550.59/1,452,979.91
  6. Step 6: Final answer
    x = 642,041.05

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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.