Home / 728,529.58-1,005,334.30-401,899.92

Finding the Fourth Proportional to 728,529.58, 1,005,334.30 and 401,899.92

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Solution

The fourth proportional to 728,529.58, 1,005,334.30 and 401,899.92 is: 554,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,529.58 : 1,005,334.30 = 401,899.92 : x
  2. Step 2: Convert to fraction form
    728,529.58/1,005,334.30 = 401,899.92/x
  3. Step 3: Cross multiply
    728,529.58x = 1,005,334.30 × 401,899.92
  4. Step 4: Simplify right side
    728,529.58x = 404,043,774,743.26
  5. Step 5: Solve for x
    x = 404,043,774,743.26/728,529.58
  6. Step 6: Final answer
    x = 554,601.74

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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.