Home / 728,692.74-1,005,548.13-401,986.26

Finding the Fourth Proportional to 728,692.74, 1,005,548.13 and 401,986.26

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Solution

The fourth proportional to 728,692.74, 1,005,548.13 and 401,986.26 is: 554,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,692.74 : 1,005,548.13 = 401,986.26 : x
  2. Step 2: Convert to fraction form
    728,692.74/1,005,548.13 = 401,986.26/x
  3. Step 3: Cross multiply
    728,692.74x = 1,005,548.13 × 401,986.26
  4. Step 4: Simplify right side
    728,692.74x = 404,216,532,028.69
  5. Step 5: Solve for x
    x = 404,216,532,028.69/728,692.74
  6. Step 6: Final answer
    x = 554,714.64

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1.5x scale

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.