Home / 728,647.22-1,005,534.08-401,952.84

Finding the Fourth Proportional to 728,647.22, 1,005,534.08 and 401,952.84

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Solution

The fourth proportional to 728,647.22, 1,005,534.08 and 401,952.84 is: 554,695.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,647.22 : 1,005,534.08 = 401,952.84 : x
  2. Step 2: Convert to fraction form
    728,647.22/1,005,534.08 = 401,952.84/x
  3. Step 3: Cross multiply
    728,647.22x = 1,005,534.08 × 401,952.84
  4. Step 4: Simplify right side
    728,647.22x = 404,177,279,172.79
  5. Step 5: Solve for x
    x = 404,177,279,172.79/728,647.22
  6. Step 6: Final answer
    x = 554,695.42

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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.