Home / 763,604.80-1,144,653.90-426,806.80

Finding the Fourth Proportional to 763,604.80, 1,144,653.90 and 426,806.80

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Solution

The fourth proportional to 763,604.80, 1,144,653.90 and 426,806.80 is: 639,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,604.80 : 1,144,653.90 = 426,806.80 : x
  2. Step 2: Convert to fraction form
    763,604.80/1,144,653.90 = 426,806.80/x
  3. Step 3: Cross multiply
    763,604.80x = 1,144,653.90 × 426,806.80
  4. Step 4: Simplify right side
    763,604.80x = 488,546,068,166.52
  5. Step 5: Solve for x
    x = 488,546,068,166.52/763,604.80
  6. Step 6: Final answer
    x = 639,789.15

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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.