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Finding the Fourth Proportional to 668,717.50, 922,846.35 and 366,911.50

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Solution

The fourth proportional to 668,717.50, 922,846.35 and 366,911.50 is: 506,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,717.50 : 922,846.35 = 366,911.50 : x
  2. Step 2: Convert to fraction form
    668,717.50/922,846.35 = 366,911.50/x
  3. Step 3: Cross multiply
    668,717.50x = 922,846.35 × 366,911.50
  4. Step 4: Simplify right side
    668,717.50x = 338,602,938,548.03
  5. Step 5: Solve for x
    x = 338,602,938,548.03/668,717.50
  6. Step 6: Final answer
    x = 506,346.76

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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.