Home / 857,212.44-1,285,818.56-288,545.80

Finding the Fourth Proportional to 857,212.44, 1,285,818.56 and 288,545.80

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Solution

The fourth proportional to 857,212.44, 1,285,818.56 and 288,545.80 is: 432,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,212.44 : 1,285,818.56 = 288,545.80 : x
  2. Step 2: Convert to fraction form
    857,212.44/1,285,818.56 = 288,545.80/x
  3. Step 3: Cross multiply
    857,212.44x = 1,285,818.56 × 288,545.80
  4. Step 4: Simplify right side
    857,212.44x = 371,017,541,474.82
  5. Step 5: Solve for x
    x = 371,017,541,474.82/857,212.44
  6. Step 6: Final answer
    x = 432,818.66

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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.