Home / 487,443.37-672,690.17-272,582.90

Finding the Fourth Proportional to 487,443.37, 672,690.17 and 272,582.90

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Solution

The fourth proportional to 487,443.37, 672,690.17 and 272,582.90 is: 376,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,443.37 : 672,690.17 = 272,582.90 : x
  2. Step 2: Convert to fraction form
    487,443.37/672,690.17 = 272,582.90/x
  3. Step 3: Cross multiply
    487,443.37x = 672,690.17 × 272,582.90
  4. Step 4: Simplify right side
    487,443.37x = 183,363,835,977.18
  5. Step 5: Solve for x
    x = 183,363,835,977.18/487,443.37
  6. Step 6: Final answer
    x = 376,174.65

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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.