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Finding the Fourth Proportional to 668,249.69, 922,127.55 and 377,847.02

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Solution

The fourth proportional to 668,249.69, 922,127.55 and 377,847.02 is: 521,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,249.69 : 922,127.55 = 377,847.02 : x
  2. Step 2: Convert to fraction form
    668,249.69/922,127.55 = 377,847.02/x
  3. Step 3: Cross multiply
    668,249.69x = 922,127.55 × 377,847.02
  4. Step 4: Simplify right side
    668,249.69x = 348,423,146,827.40
  5. Step 5: Solve for x
    x = 348,423,146,827.40/668,249.69
  6. Step 6: Final answer
    x = 521,396.65

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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.