Home / 857,575.43-1,284,648.06-515,830.16

Finding the Fourth Proportional to 857,575.43, 1,284,648.06 and 515,830.16

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Solution

The fourth proportional to 857,575.43, 1,284,648.06 and 515,830.16 is: 772,713.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,575.43 : 1,284,648.06 = 515,830.16 : x
  2. Step 2: Convert to fraction form
    857,575.43/1,284,648.06 = 515,830.16/x
  3. Step 3: Cross multiply
    857,575.43x = 1,284,648.06 × 515,830.16
  4. Step 4: Simplify right side
    857,575.43x = 662,660,217,545.11
  5. Step 5: Solve for x
    x = 662,660,217,545.11/857,575.43
  6. Step 6: Final answer
    x = 772,713.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.