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Finding the Fourth Proportional to 614,841.70, 922,262.55 and 445,567.90

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Solution

The fourth proportional to 614,841.70, 922,262.55 and 445,567.90 is: 668,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,841.70 : 922,262.55 = 445,567.90 : x
  2. Step 2: Convert to fraction form
    614,841.70/922,262.55 = 445,567.90/x
  3. Step 3: Cross multiply
    614,841.70x = 922,262.55 × 445,567.90
  4. Step 4: Simplify right side
    614,841.70x = 410,930,587,652.15
  5. Step 5: Solve for x
    x = 410,930,587,652.15/614,841.70
  6. Step 6: Final answer
    x = 668,351.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.