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Finding the Fourth Proportional to 487,599.75, 672,917.49 and 272,754.27

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Solution

The fourth proportional to 487,599.75, 672,917.49 and 272,754.27 is: 376,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,599.75 : 672,917.49 = 272,754.27 : x
  2. Step 2: Convert to fraction form
    487,599.75/672,917.49 = 272,754.27/x
  3. Step 3: Cross multiply
    487,599.75x = 672,917.49 × 272,754.27
  4. Step 4: Simplify right side
    487,599.75x = 183,541,118,755.18
  5. Step 5: Solve for x
    x = 183,541,118,755.18/487,599.75
  6. Step 6: Final answer
    x = 376,417.58

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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.