Home / 1,285,905.42-1,774,649.79-713,057.22

Finding the Fourth Proportional to 1,285,905.42, 1,774,649.79 and 713,057.22

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Solution

The fourth proportional to 1,285,905.42, 1,774,649.79 and 713,057.22 is: 984,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,905.42 : 1,774,649.79 = 713,057.22 : x
  2. Step 2: Convert to fraction form
    1,285,905.42/1,774,649.79 = 713,057.22/x
  3. Step 3: Cross multiply
    1,285,905.42x = 1,774,649.79 × 713,057.22
  4. Step 4: Simplify right side
    1,285,905.42x = 1,265,426,845,730.98
  5. Step 5: Solve for x
    x = 1,265,426,845,730.98/1,285,905.42
  6. Step 6: Final answer
    x = 984,074.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.