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Finding the Fourth Proportional to 499,718.00, 689,608.67 and 270,275.51

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Solution

The fourth proportional to 499,718.00, 689,608.67 and 270,275.51 is: 372,979.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,718.00 : 689,608.67 = 270,275.51 : x
  2. Step 2: Convert to fraction form
    499,718.00/689,608.67 = 270,275.51/x
  3. Step 3: Cross multiply
    499,718.00x = 689,608.67 × 270,275.51
  4. Step 4: Simplify right side
    499,718.00x = 186,384,330,185.25
  5. Step 5: Solve for x
    x = 186,384,330,185.25/499,718.00
  6. Step 6: Final answer
    x = 372,979.02

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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.