Home / 857,013.96-1,285,118.01-316,897.05

Finding the Fourth Proportional to 857,013.96, 1,285,118.01 and 316,897.05

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Solution

The fourth proportional to 857,013.96, 1,285,118.01 and 316,897.05 is: 475,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,013.96 : 1,285,118.01 = 316,897.05 : x
  2. Step 2: Convert to fraction form
    857,013.96/1,285,118.01 = 316,897.05/x
  3. Step 3: Cross multiply
    857,013.96x = 1,285,118.01 × 316,897.05
  4. Step 4: Simplify right side
    857,013.96x = 407,250,106,270.87
  5. Step 5: Solve for x
    x = 407,250,106,270.87/857,013.96
  6. Step 6: Final answer
    x = 475,196.58

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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.