Home / 746,400.61-1,120,034.47-314,086.20

Finding the Fourth Proportional to 746,400.61, 1,120,034.47 and 314,086.20

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Solution

The fourth proportional to 746,400.61, 1,120,034.47 and 314,086.20 is: 471,311.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,400.61 : 1,120,034.47 = 314,086.20 : x
  2. Step 2: Convert to fraction form
    746,400.61/1,120,034.47 = 314,086.20/x
  3. Step 3: Cross multiply
    746,400.61x = 1,120,034.47 × 314,086.20
  4. Step 4: Simplify right side
    746,400.61x = 351,787,370,551.31
  5. Step 5: Solve for x
    x = 351,787,370,551.31/746,400.61
  6. Step 6: Final answer
    x = 471,311.74

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Double scale
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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.