Home / 740,972.07-1,022,546.43-401,440.32

Finding the Fourth Proportional to 740,972.07, 1,022,546.43 and 401,440.32

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Solution

The fourth proportional to 740,972.07, 1,022,546.43 and 401,440.32 is: 553,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,972.07 : 1,022,546.43 = 401,440.32 : x
  2. Step 2: Convert to fraction form
    740,972.07/1,022,546.43 = 401,440.32/x
  3. Step 3: Cross multiply
    740,972.07x = 1,022,546.43 × 401,440.32
  4. Step 4: Simplify right side
    740,972.07x = 410,491,366,074.06
  5. Step 5: Solve for x
    x = 410,491,366,074.06/740,972.07
  6. Step 6: Final answer
    x = 553,990.34

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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.