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Finding the Fourth Proportional to 487,487.45, 672,901.78 and 335,030.32

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Solution

The fourth proportional to 487,487.45, 672,901.78 and 335,030.32 is: 462,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,487.45 : 672,901.78 = 335,030.32 : x
  2. Step 2: Convert to fraction form
    487,487.45/672,901.78 = 335,030.32/x
  3. Step 3: Cross multiply
    487,487.45x = 672,901.78 × 335,030.32
  4. Step 4: Simplify right side
    487,487.45x = 225,442,498,681.97
  5. Step 5: Solve for x
    x = 225,442,498,681.97/487,487.45
  6. Step 6: Final answer
    x = 462,458.06

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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.