Home / 703,612.50-1,055,418.75-309,628.50

Finding the Fourth Proportional to 703,612.50, 1,055,418.75 and 309,628.50

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Solution

The fourth proportional to 703,612.50, 1,055,418.75 and 309,628.50 is: 464,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,612.50 : 1,055,418.75 = 309,628.50 : x
  2. Step 2: Convert to fraction form
    703,612.50/1,055,418.75 = 309,628.50/x
  3. Step 3: Cross multiply
    703,612.50x = 1,055,418.75 × 309,628.50
  4. Step 4: Simplify right side
    703,612.50x = 326,787,724,434.38
  5. Step 5: Solve for x
    x = 326,787,724,434.38/703,612.50
  6. Step 6: Final answer
    x = 464,442.75

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Similar ratio
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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.