Home / 769,492.60-1,153,616.29-320,550.71

Finding the Fourth Proportional to 769,492.60, 1,153,616.29 and 320,550.71

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Solution

The fourth proportional to 769,492.60, 1,153,616.29 and 320,550.71 is: 480,566.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,492.60 : 1,153,616.29 = 320,550.71 : x
  2. Step 2: Convert to fraction form
    769,492.60/1,153,616.29 = 320,550.71/x
  3. Step 3: Cross multiply
    769,492.60x = 1,153,616.29 × 320,550.71
  4. Step 4: Simplify right side
    769,492.60x = 369,792,514,257.61
  5. Step 5: Solve for x
    x = 369,792,514,257.61/769,492.60
  6. Step 6: Final answer
    x = 480,566.69

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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.