Home / 2,087,811.52-3,131,717.30-511,875.52

Finding the Fourth Proportional to 2,087,811.52, 3,131,717.30 and 511,875.52

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Solution

The fourth proportional to 2,087,811.52, 3,131,717.30 and 511,875.52 is: 767,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,811.52 : 3,131,717.30 = 511,875.52 : x
  2. Step 2: Convert to fraction form
    2,087,811.52/3,131,717.30 = 511,875.52/x
  3. Step 3: Cross multiply
    2,087,811.52x = 3,131,717.30 × 511,875.52
  4. Step 4: Simplify right side
    2,087,811.52x = 1,603,049,421,430.50
  5. Step 5: Solve for x
    x = 1,603,049,421,430.50/2,087,811.52
  6. Step 6: Final answer
    x = 767,813.28

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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.