Home / 859,135.10-1,185,339.56-496,426.55

Finding the Fourth Proportional to 859,135.10, 1,185,339.56 and 496,426.55

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Solution

The fourth proportional to 859,135.10, 1,185,339.56 and 496,426.55 is: 684,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,135.10 : 1,185,339.56 = 496,426.55 : x
  2. Step 2: Convert to fraction form
    859,135.10/1,185,339.56 = 496,426.55/x
  3. Step 3: Cross multiply
    859,135.10x = 1,185,339.56 × 496,426.55
  4. Step 4: Simplify right side
    859,135.10x = 588,434,019,940.49
  5. Step 5: Solve for x
    x = 588,434,019,940.49/859,135.10
  6. Step 6: Final answer
    x = 684,914.43

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Double scale
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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.