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Finding the Fourth Proportional to 668,641.50, 922,741.47 and 366,835.50

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Solution

The fourth proportional to 668,641.50, 922,741.47 and 366,835.50 is: 506,241.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,641.50 : 922,741.47 = 366,835.50 : x
  2. Step 2: Convert to fraction form
    668,641.50/922,741.47 = 366,835.50/x
  3. Step 3: Cross multiply
    668,641.50x = 922,741.47 × 366,835.50
  4. Step 4: Simplify right side
    668,641.50x = 338,494,328,518.19
  5. Step 5: Solve for x
    x = 338,494,328,518.19/668,641.50
  6. Step 6: Final answer
    x = 506,241.88

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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.