Home / 1,228,723.76-1,842,790.40-629,376.41

Finding the Fourth Proportional to 1,228,723.76, 1,842,790.40 and 629,376.41

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Solution

The fourth proportional to 1,228,723.76, 1,842,790.40 and 629,376.41 is: 943,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,723.76 : 1,842,790.40 = 629,376.41 : x
  2. Step 2: Convert to fraction form
    1,228,723.76/1,842,790.40 = 629,376.41/x
  3. Step 3: Cross multiply
    1,228,723.76x = 1,842,790.40 × 629,376.41
  4. Step 4: Simplify right side
    1,228,723.76x = 1,159,808,810,154.72
  5. Step 5: Solve for x
    x = 1,159,808,810,154.72/1,228,723.76
  6. Step 6: Final answer
    x = 943,913.39

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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.