Home / 769,538.91-1,153,685.76-320,597.03

Finding the Fourth Proportional to 769,538.91, 1,153,685.76 and 320,597.03

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Solution

The fourth proportional to 769,538.91, 1,153,685.76 and 320,597.03 is: 480,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,538.91 : 1,153,685.76 = 320,597.03 : x
  2. Step 2: Convert to fraction form
    769,538.91/1,153,685.76 = 320,597.03/x
  3. Step 3: Cross multiply
    769,538.91x = 1,153,685.76 × 320,597.03
  4. Step 4: Simplify right side
    769,538.91x = 369,868,222,440.86
  5. Step 5: Solve for x
    x = 369,868,222,440.86/769,538.91
  6. Step 6: Final answer
    x = 480,636.15

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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.