Home / 641,779.28-962,655.94-221,045.84

Finding the Fourth Proportional to 641,779.28, 962,655.94 and 221,045.84

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Solution

The fourth proportional to 641,779.28, 962,655.94 and 221,045.84 is: 331,564.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,779.28 : 962,655.94 = 221,045.84 : x
  2. Step 2: Convert to fraction form
    641,779.28/962,655.94 = 221,045.84/x
  3. Step 3: Cross multiply
    641,779.28x = 962,655.94 × 221,045.84
  4. Step 4: Simplify right side
    641,779.28x = 212,791,090,888.29
  5. Step 5: Solve for x
    x = 212,791,090,888.29/641,779.28
  6. Step 6: Final answer
    x = 331,564.29

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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.