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Finding the Fourth Proportional to 668,554.32, 922,668.04 and 382,018.88

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Solution

The fourth proportional to 668,554.32, 922,668.04 and 382,018.88 is: 527,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,554.32 : 922,668.04 = 382,018.88 : x
  2. Step 2: Convert to fraction form
    668,554.32/922,668.04 = 382,018.88/x
  3. Step 3: Cross multiply
    668,554.32x = 922,668.04 × 382,018.88
  4. Step 4: Simplify right side
    668,554.32x = 352,476,611,252.60
  5. Step 5: Solve for x
    x = 352,476,611,252.60/668,554.32
  6. Step 6: Final answer
    x = 527,222.10

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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.