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Finding the Fourth Proportional to 668,717.52, 922,830.08 and 382,243.76

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Solution

The fourth proportional to 668,717.52, 922,830.08 and 382,243.76 is: 527,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,717.52 : 922,830.08 = 382,243.76 : x
  2. Step 2: Convert to fraction form
    668,717.52/922,830.08 = 382,243.76/x
  3. Step 3: Cross multiply
    668,717.52x = 922,830.08 × 382,243.76
  4. Step 4: Simplify right side
    668,717.52x = 352,746,033,094.93
  5. Step 5: Solve for x
    x = 352,746,033,094.93/668,717.52
  6. Step 6: Final answer
    x = 527,496.32

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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.