Home / 857,821.16-1,285,833.88-289,005.70

Finding the Fourth Proportional to 857,821.16, 1,285,833.88 and 289,005.70

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Solution

The fourth proportional to 857,821.16, 1,285,833.88 and 289,005.70 is: 433,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,821.16 : 1,285,833.88 = 289,005.70 : x
  2. Step 2: Convert to fraction form
    857,821.16/1,285,833.88 = 289,005.70/x
  3. Step 3: Cross multiply
    857,821.16x = 1,285,833.88 × 289,005.70
  4. Step 4: Simplify right side
    857,821.16x = 371,613,320,573.12
  5. Step 5: Solve for x
    x = 371,613,320,573.12/857,821.16
  6. Step 6: Final answer
    x = 433,206.05

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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.