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Finding the Fourth Proportional to 668,728.10, 922,844.63 and 382,254.35

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Solution

The fourth proportional to 668,728.10, 922,844.63 and 382,254.35 is: 527,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,728.10 : 922,844.63 = 382,254.35 : x
  2. Step 2: Convert to fraction form
    668,728.10/922,844.63 = 382,254.35/x
  3. Step 3: Cross multiply
    668,728.10x = 922,844.63 × 382,254.35
  4. Step 4: Simplify right side
    668,728.10x = 352,761,372,280.37
  5. Step 5: Solve for x
    x = 352,761,372,280.37/668,728.10
  6. Step 6: Final answer
    x = 527,510.92

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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.