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Finding the Fourth Proportional to 487,449.73, 672,849.74 and 334,992.59

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Solution

The fourth proportional to 487,449.73, 672,849.74 and 334,992.59 is: 462,406.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,449.73 : 672,849.74 = 334,992.59 : x
  2. Step 2: Convert to fraction form
    487,449.73/672,849.74 = 334,992.59/x
  3. Step 3: Cross multiply
    487,449.73x = 672,849.74 × 334,992.59
  4. Step 4: Simplify right side
    487,449.73x = 225,399,678,980.29
  5. Step 5: Solve for x
    x = 225,399,678,980.29/487,449.73
  6. Step 6: Final answer
    x = 462,406.00

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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.