Home / 769,492.85-1,153,616.66-320,550.96

Finding the Fourth Proportional to 769,492.85, 1,153,616.66 and 320,550.96

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Solution

The fourth proportional to 769,492.85, 1,153,616.66 and 320,550.96 is: 480,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,492.85 : 1,153,616.66 = 320,550.96 : x
  2. Step 2: Convert to fraction form
    769,492.85/1,153,616.66 = 320,550.96/x
  3. Step 3: Cross multiply
    769,492.85x = 1,153,616.66 × 320,550.96
  4. Step 4: Simplify right side
    769,492.85x = 369,792,927,834.99
  5. Step 5: Solve for x
    x = 369,792,927,834.99/769,492.85
  6. Step 6: Final answer
    x = 480,567.07

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1.5x scale

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.