Home / 857,374.97-1,285,030.89-317,200.55

Finding the Fourth Proportional to 857,374.97, 1,285,030.89 and 317,200.55

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Solution

The fourth proportional to 857,374.97, 1,285,030.89 and 317,200.55 is: 475,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,374.97 : 1,285,030.89 = 317,200.55 : x
  2. Step 2: Convert to fraction form
    857,374.97/1,285,030.89 = 317,200.55/x
  3. Step 3: Cross multiply
    857,374.97x = 1,285,030.89 × 317,200.55
  4. Step 4: Simplify right side
    857,374.97x = 407,612,498,649.84
  5. Step 5: Solve for x
    x = 407,612,498,649.84/857,374.97
  6. Step 6: Final answer
    x = 475,419.18

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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.