Home / 487,566.28-672,876.64-272,775.50

Finding the Fourth Proportional to 487,566.28, 672,876.64 and 272,775.50

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Solution

The fourth proportional to 487,566.28, 672,876.64 and 272,775.50 is: 376,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,566.28 : 672,876.64 = 272,775.50 : x
  2. Step 2: Convert to fraction form
    487,566.28/672,876.64 = 272,775.50/x
  3. Step 3: Cross multiply
    487,566.28x = 672,876.64 × 272,775.50
  4. Step 4: Simplify right side
    487,566.28x = 183,544,261,914.32
  5. Step 5: Solve for x
    x = 183,544,261,914.32/487,566.28
  6. Step 6: Final answer
    x = 376,449.87

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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.