Home / 487,656.26-672,991.78-272,783.52

Finding the Fourth Proportional to 487,656.26, 672,991.78 and 272,783.52

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Solution

The fourth proportional to 487,656.26, 672,991.78 and 272,783.52 is: 376,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,656.26 : 672,991.78 = 272,783.52 : x
  2. Step 2: Convert to fraction form
    487,656.26/672,991.78 = 272,783.52/x
  3. Step 3: Cross multiply
    487,656.26x = 672,991.78 × 272,783.52
  4. Step 4: Simplify right side
    487,656.26x = 183,581,066,679.47
  5. Step 5: Solve for x
    x = 183,581,066,679.47/487,656.26
  6. Step 6: Final answer
    x = 376,455.88

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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.