Home / 786,720.12-1,085,845.68-500,184.24

Finding the Fourth Proportional to 786,720.12, 1,085,845.68 and 500,184.24

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Solution

The fourth proportional to 786,720.12, 1,085,845.68 and 500,184.24 is: 690,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,720.12 : 1,085,845.68 = 500,184.24 : x
  2. Step 2: Convert to fraction form
    786,720.12/1,085,845.68 = 500,184.24/x
  3. Step 3: Cross multiply
    786,720.12x = 1,085,845.68 × 500,184.24
  4. Step 4: Simplify right side
    786,720.12x = 543,122,896,208.08
  5. Step 5: Solve for x
    x = 543,122,896,208.08/786,720.12
  6. Step 6: Final answer
    x = 690,363.55

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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.