Home / 487,921.64-673,317.38-270,140

Finding the Fourth Proportional to 487,921.64, 673,317.38 and 270,140

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Solution

The fourth proportional to 487,921.64, 673,317.38 and 270,140 is: 372,785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,921.64 : 673,317.38 = 270,140 : x
  2. Step 2: Convert to fraction form
    487,921.64/673,317.38 = 270,140/x
  3. Step 3: Cross multiply
    487,921.64x = 673,317.38 × 270,140
  4. Step 4: Simplify right side
    487,921.64x = 181,889,955,682.50
  5. Step 5: Solve for x
    x = 181,889,955,682.50/487,921.64
  6. Step 6: Final answer
    x = 372,785.18

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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.