Home / 487,063.56-672,575.22-306,089.04

Finding the Fourth Proportional to 487,063.56, 672,575.22 and 306,089.04

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Solution

The fourth proportional to 487,063.56, 672,575.22 and 306,089.04 is: 422,671.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,063.56 : 672,575.22 = 306,089.04 : x
  2. Step 2: Convert to fraction form
    487,063.56/672,575.22 = 306,089.04/x
  3. Step 3: Cross multiply
    487,063.56x = 672,575.22 × 306,089.04
  4. Step 4: Simplify right side
    487,063.56x = 205,867,903,417.59
  5. Step 5: Solve for x
    x = 205,867,903,417.59/487,063.56
  6. Step 6: Final answer
    x = 422,671.54

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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.