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Finding the Fourth Proportional to 668,253.70, 922,133.06 and 377,851.02

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Solution

The fourth proportional to 668,253.70, 922,133.06 and 377,851.02 is: 521,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,253.70 : 922,133.06 = 377,851.02 : x
  2. Step 2: Convert to fraction form
    668,253.70/922,133.06 = 377,851.02/x
  3. Step 3: Cross multiply
    668,253.70x = 922,133.06 × 377,851.02
  4. Step 4: Simplify right side
    668,253.70x = 348,428,917,296.72
  5. Step 5: Solve for x
    x = 348,428,917,296.72/668,253.70
  6. Step 6: Final answer
    x = 521,402.15

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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.