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Finding the Fourth Proportional to 668,713.02, 922,823.86 and 382,239.25

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Solution

The fourth proportional to 668,713.02, 922,823.86 and 382,239.25 is: 527,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,713.02 : 922,823.86 = 382,239.25 : x
  2. Step 2: Convert to fraction form
    668,713.02/922,823.86 = 382,239.25/x
  3. Step 3: Cross multiply
    668,713.02x = 922,823.86 × 382,239.25
  4. Step 4: Simplify right side
    668,713.02x = 352,739,503,848.48
  5. Step 5: Solve for x
    x = 352,739,503,848.48/668,713.02
  6. Step 6: Final answer
    x = 527,490.11

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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.