Home / 857,816.92-1,285,827.51-289,001.46

Finding the Fourth Proportional to 857,816.92, 1,285,827.51 and 289,001.46

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Solution

The fourth proportional to 857,816.92, 1,285,827.51 and 289,001.46 is: 433,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,816.92 : 1,285,827.51 = 289,001.46 : x
  2. Step 2: Convert to fraction form
    857,816.92/1,285,827.51 = 289,001.46/x
  3. Step 3: Cross multiply
    857,816.92x = 1,285,827.51 × 289,001.46
  4. Step 4: Simplify right side
    857,816.92x = 371,606,024,562.80
  5. Step 5: Solve for x
    x = 371,606,024,562.80/857,816.92
  6. Step 6: Final answer
    x = 433,199.69

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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.