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Finding the Fourth Proportional to 662,461.60, 993,206.40 and 262,904.80

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Solution

The fourth proportional to 662,461.60, 993,206.40 and 262,904.80 is: 394,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,461.60 : 993,206.40 = 262,904.80 : x
  2. Step 2: Convert to fraction form
    662,461.60/993,206.40 = 262,904.80/x
  3. Step 3: Cross multiply
    662,461.60x = 993,206.40 × 262,904.80
  4. Step 4: Simplify right side
    662,461.60x = 261,118,729,950.72
  5. Step 5: Solve for x
    x = 261,118,729,950.72/662,461.60
  6. Step 6: Final answer
    x = 394,164.33

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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.