Home / 782,085.99-1,173,572.77-422,252.05

Finding the Fourth Proportional to 782,085.99, 1,173,572.77 and 422,252.05

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Solution

The fourth proportional to 782,085.99, 1,173,572.77 and 422,252.05 is: 633,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,085.99 : 1,173,572.77 = 422,252.05 : x
  2. Step 2: Convert to fraction form
    782,085.99/1,173,572.77 = 422,252.05/x
  3. Step 3: Cross multiply
    782,085.99x = 1,173,572.77 × 422,252.05
  4. Step 4: Simplify right side
    782,085.99x = 495,543,503,967.12
  5. Step 5: Solve for x
    x = 495,543,503,967.12/782,085.99
  6. Step 6: Final answer
    x = 633,617.67

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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.