Home / 1,153,234.40-1,729,847.52-311,786

Finding the Fourth Proportional to 1,153,234.40, 1,729,847.52 and 311,786

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Solution

The fourth proportional to 1,153,234.40, 1,729,847.52 and 311,786 is: 467,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,234.40 : 1,729,847.52 = 311,786 : x
  2. Step 2: Convert to fraction form
    1,153,234.40/1,729,847.52 = 311,786/x
  3. Step 3: Cross multiply
    1,153,234.40x = 1,729,847.52 × 311,786
  4. Step 4: Simplify right side
    1,153,234.40x = 539,342,238,870.72
  5. Step 5: Solve for x
    x = 539,342,238,870.72/1,153,234.40
  6. Step 6: Final answer
    x = 467,677.90

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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.