Home / 740,981.25-1,022,555.07-401,449.50

Finding the Fourth Proportional to 740,981.25, 1,022,555.07 and 401,449.50

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Solution

The fourth proportional to 740,981.25, 1,022,555.07 and 401,449.50 is: 554,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,981.25 : 1,022,555.07 = 401,449.50 : x
  2. Step 2: Convert to fraction form
    740,981.25/1,022,555.07 = 401,449.50/x
  3. Step 3: Cross multiply
    740,981.25x = 1,022,555.07 × 401,449.50
  4. Step 4: Simplify right side
    740,981.25x = 410,504,221,573.97
  5. Step 5: Solve for x
    x = 410,504,221,573.97/740,981.25
  6. Step 6: Final answer
    x = 554,000.82

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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.