Home / 782,402.58-1,173,603.83-427,222.85

Finding the Fourth Proportional to 782,402.58, 1,173,603.83 and 427,222.85

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Solution

The fourth proportional to 782,402.58, 1,173,603.83 and 427,222.85 is: 640,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,402.58 : 1,173,603.83 = 427,222.85 : x
  2. Step 2: Convert to fraction form
    782,402.58/1,173,603.83 = 427,222.85/x
  3. Step 3: Cross multiply
    782,402.58x = 1,173,603.83 × 427,222.85
  4. Step 4: Simplify right side
    782,402.58x = 501,390,365,019.38
  5. Step 5: Solve for x
    x = 501,390,365,019.38/782,402.58
  6. Step 6: Final answer
    x = 640,834.24

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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.