Home / 786,723.12-1,085,849.82-500,187.24

Finding the Fourth Proportional to 786,723.12, 1,085,849.82 and 500,187.24

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Solution

The fourth proportional to 786,723.12, 1,085,849.82 and 500,187.24 is: 690,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,723.12 : 1,085,849.82 = 500,187.24 : x
  2. Step 2: Convert to fraction form
    786,723.12/1,085,849.82 = 500,187.24/x
  3. Step 3: Cross multiply
    786,723.12x = 1,085,849.82 × 500,187.24
  4. Step 4: Simplify right side
    786,723.12x = 543,128,224,520.30
  5. Step 5: Solve for x
    x = 543,128,224,520.30/786,723.12
  6. Step 6: Final answer
    x = 690,367.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.