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Finding the Third Proportional to 340,836.61 and 528,479.44

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Solution

The third proportional to 340,836.61 and 528,479.44 is: 819,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,836.61 : 528,479.44 = 528,479.44 : x
  2. Step 2: Convert to fraction form
    340,836.61/528,479.44 = 528,479.44/x
  3. Step 3: Cross multiply
    340,836.61x = 528,479.44 × 528,479.44
  4. Step 4: Simplify right side
    340,836.61x = 279,290,515,860.32
  5. Step 5: Solve for x
    x = 279,290,515,860.32/340,836.61
  6. Step 6: Final answer
    x = 819,426.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.