Home / 672,935.60-928,625.46-371,129.60

Finding the Fourth Proportional to 672,935.60, 928,625.46 and 371,129.60

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Solution

The fourth proportional to 672,935.60, 928,625.46 and 371,129.60 is: 512,144.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,935.60 : 928,625.46 = 371,129.60 : x
  2. Step 2: Convert to fraction form
    672,935.60/928,625.46 = 371,129.60/x
  3. Step 3: Cross multiply
    672,935.60x = 928,625.46 × 371,129.60
  4. Step 4: Simplify right side
    672,935.60x = 344,640,395,519.62
  5. Step 5: Solve for x
    x = 344,640,395,519.62/672,935.60
  6. Step 6: Final answer
    x = 512,144.69

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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.