Home / 699,515.76-1,047,101.59-378,871.24

Finding the Fourth Proportional to 699,515.76, 1,047,101.59 and 378,871.24

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Solution

The fourth proportional to 699,515.76, 1,047,101.59 and 378,871.24 is: 567,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,515.76 : 1,047,101.59 = 378,871.24 : x
  2. Step 2: Convert to fraction form
    699,515.76/1,047,101.59 = 378,871.24/x
  3. Step 3: Cross multiply
    699,515.76x = 1,047,101.59 × 378,871.24
  4. Step 4: Simplify right side
    699,515.76x = 396,716,670,679.41
  5. Step 5: Solve for x
    x = 396,716,670,679.41/699,515.76
  6. Step 6: Final answer
    x = 567,130.43

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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.