Home / 487,589.73-672,837.27-272,688.27

Finding the Fourth Proportional to 487,589.73, 672,837.27 and 272,688.27

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Solution

The fourth proportional to 487,589.73, 672,837.27 and 272,688.27 is: 376,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,589.73 : 672,837.27 = 272,688.27 : x
  2. Step 2: Convert to fraction form
    487,589.73/672,837.27 = 272,688.27/x
  3. Step 3: Cross multiply
    487,589.73x = 672,837.27 × 272,688.27
  4. Step 4: Simplify right side
    487,589.73x = 183,474,831,147.82
  5. Step 5: Solve for x
    x = 183,474,831,147.82/487,589.73
  6. Step 6: Final answer
    x = 376,289.37

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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.