Home / 857,822.16-1,285,835.38-289,006.70

Finding the Fourth Proportional to 857,822.16, 1,285,835.38 and 289,006.70

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Solution

The fourth proportional to 857,822.16, 1,285,835.38 and 289,006.70 is: 433,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,822.16 : 1,285,835.38 = 289,006.70 : x
  2. Step 2: Convert to fraction form
    857,822.16/1,285,835.38 = 289,006.70/x
  3. Step 3: Cross multiply
    857,822.16x = 1,285,835.38 × 289,006.70
  4. Step 4: Simplify right side
    857,822.16x = 371,615,039,917.05
  5. Step 5: Solve for x
    x = 371,615,039,917.05/857,822.16
  6. Step 6: Final answer
    x = 433,207.55

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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.