Home / 487,679.42-672,998.60-272,823.08

Finding the Fourth Proportional to 487,679.42, 672,998.60 and 272,823.08

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Solution

The fourth proportional to 487,679.42, 672,998.60 and 272,823.08 is: 376,496.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,679.42 : 672,998.60 = 272,823.08 : x
  2. Step 2: Convert to fraction form
    487,679.42/672,998.60 = 272,823.08/x
  3. Step 3: Cross multiply
    487,679.42x = 672,998.60 × 272,823.08
  4. Step 4: Simplify right side
    487,679.42x = 183,609,550,887.69
  5. Step 5: Solve for x
    x = 183,609,550,887.69/487,679.42
  6. Step 6: Final answer
    x = 376,496.41

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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.