Home / 487,921.89-673,317.72-270,140.25

Finding the Fourth Proportional to 487,921.89, 673,317.72 and 270,140.25

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Solution

The fourth proportional to 487,921.89, 673,317.72 and 270,140.25 is: 372,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,921.89 : 673,317.72 = 270,140.25 : x
  2. Step 2: Convert to fraction form
    487,921.89/673,317.72 = 270,140.25/x
  3. Step 3: Cross multiply
    487,921.89x = 673,317.72 × 270,140.25
  4. Step 4: Simplify right side
    487,921.89x = 181,890,217,210.23
  5. Step 5: Solve for x
    x = 181,890,217,210.23/487,921.89
  6. Step 6: Final answer
    x = 372,785.52

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Similar ratio
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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.