Home / 711,779.40-1,067,963.94-312,213.96

Finding the Fourth Proportional to 711,779.40, 1,067,963.94 and 312,213.96

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Solution

The fourth proportional to 711,779.40, 1,067,963.94 and 312,213.96 is: 468,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,779.40 : 1,067,963.94 = 312,213.96 : x
  2. Step 2: Convert to fraction form
    711,779.40/1,067,963.94 = 312,213.96/x
  3. Step 3: Cross multiply
    711,779.40x = 1,067,963.94 × 312,213.96
  4. Step 4: Simplify right side
    711,779.40x = 333,433,250,844.60
  5. Step 5: Solve for x
    x = 333,433,250,844.60/711,779.40
  6. Step 6: Final answer
    x = 468,450.27

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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.