Home / 740,738.65-1,022,302.30-418,469.51

Finding the Fourth Proportional to 740,738.65, 1,022,302.30 and 418,469.51

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Solution

The fourth proportional to 740,738.65, 1,022,302.30 and 418,469.51 is: 577,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,738.65 : 1,022,302.30 = 418,469.51 : x
  2. Step 2: Convert to fraction form
    740,738.65/1,022,302.30 = 418,469.51/x
  3. Step 3: Cross multiply
    740,738.65x = 1,022,302.30 × 418,469.51
  4. Step 4: Simplify right side
    740,738.65x = 427,802,342,552.87
  5. Step 5: Solve for x
    x = 427,802,342,552.87/740,738.65
  6. Step 6: Final answer
    x = 577,534.79

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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.