Home / 851,378.63-1,277,379.39-396,187.04

Finding the Fourth Proportional to 851,378.63, 1,277,379.39 and 396,187.04

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Solution

The fourth proportional to 851,378.63, 1,277,379.39 and 396,187.04 is: 594,425.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,378.63 : 1,277,379.39 = 396,187.04 : x
  2. Step 2: Convert to fraction form
    851,378.63/1,277,379.39 = 396,187.04/x
  3. Step 3: Cross multiply
    851,378.63x = 1,277,379.39 × 396,187.04
  4. Step 4: Simplify right side
    851,378.63x = 506,081,153,094.21
  5. Step 5: Solve for x
    x = 506,081,153,094.21/851,378.63
  6. Step 6: Final answer
    x = 594,425.49

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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.