Home / 857,827.06-1,285,842.70-289,011.59

Finding the Fourth Proportional to 857,827.06, 1,285,842.70 and 289,011.59

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Solution

The fourth proportional to 857,827.06, 1,285,842.70 and 289,011.59 is: 433,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,827.06 : 1,285,842.70 = 289,011.59 : x
  2. Step 2: Convert to fraction form
    857,827.06/1,285,842.70 = 289,011.59/x
  3. Step 3: Cross multiply
    857,827.06x = 1,285,842.70 × 289,011.59
  4. Step 4: Simplify right side
    857,827.06x = 371,623,449,203.72
  5. Step 5: Solve for x
    x = 371,623,449,203.72/857,827.06
  6. Step 6: Final answer
    x = 433,214.88

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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.