Home / 1,215,811.90-1,823,719.29-317,252.98

Finding the Fourth Proportional to 1,215,811.90, 1,823,719.29 and 317,252.98

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Solution

The fourth proportional to 1,215,811.90, 1,823,719.29 and 317,252.98 is: 475,879.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,811.90 : 1,823,719.29 = 317,252.98 : x
  2. Step 2: Convert to fraction form
    1,215,811.90/1,823,719.29 = 317,252.98/x
  3. Step 3: Cross multiply
    1,215,811.90x = 1,823,719.29 × 317,252.98
  4. Step 4: Simplify right side
    1,215,811.90x = 578,580,379,435.98
  5. Step 5: Solve for x
    x = 578,580,379,435.98/1,215,811.90
  6. Step 6: Final answer
    x = 475,879.85

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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.