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Finding the Fourth Proportional to 518,975.44, 715,549.79 and 426,772.51

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Solution

The fourth proportional to 518,975.44, 715,549.79 and 426,772.51 is: 588,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,975.44 : 715,549.79 = 426,772.51 : x
  2. Step 2: Convert to fraction form
    518,975.44/715,549.79 = 426,772.51/x
  3. Step 3: Cross multiply
    518,975.44x = 715,549.79 × 426,772.51
  4. Step 4: Simplify right side
    518,975.44x = 305,376,979,908.27
  5. Step 5: Solve for x
    x = 305,376,979,908.27/518,975.44
  6. Step 6: Final answer
    x = 588,422.80

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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.