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Finding the Fourth Proportional to 668,552.32, 922,665.28 and 382,016.88

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Solution

The fourth proportional to 668,552.32, 922,665.28 and 382,016.88 is: 527,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,552.32 : 922,665.28 = 382,016.88 : x
  2. Step 2: Convert to fraction form
    668,552.32/922,665.28 = 382,016.88/x
  3. Step 3: Cross multiply
    668,552.32x = 922,665.28 × 382,016.88
  4. Step 4: Simplify right side
    668,552.32x = 352,473,711,549.93
  5. Step 5: Solve for x
    x = 352,473,711,549.93/668,552.32
  6. Step 6: Final answer
    x = 527,219.34

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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.