Home / 725,905.84-1,089,079.80-371,169.04

Finding the Fourth Proportional to 725,905.84, 1,089,079.80 and 371,169.04

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Solution

The fourth proportional to 725,905.84, 1,089,079.80 and 371,169.04 is: 556,866.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,905.84 : 1,089,079.80 = 371,169.04 : x
  2. Step 2: Convert to fraction form
    725,905.84/1,089,079.80 = 371,169.04/x
  3. Step 3: Cross multiply
    725,905.84x = 1,089,079.80 × 371,169.04
  4. Step 4: Simplify right side
    725,905.84x = 404,232,703,849.39
  5. Step 5: Solve for x
    x = 404,232,703,849.39/725,905.84
  6. Step 6: Final answer
    x = 556,866.58

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1.5x scale

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.