Home / 726,928.86-1,003,191.30-404,618.52

Finding the Fourth Proportional to 726,928.86, 1,003,191.30 and 404,618.52

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Solution

The fourth proportional to 726,928.86, 1,003,191.30 and 404,618.52 is: 558,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,928.86 : 1,003,191.30 = 404,618.52 : x
  2. Step 2: Convert to fraction form
    726,928.86/1,003,191.30 = 404,618.52/x
  3. Step 3: Cross multiply
    726,928.86x = 1,003,191.30 × 404,618.52
  4. Step 4: Simplify right side
    726,928.86x = 405,909,779,082.88
  5. Step 5: Solve for x
    x = 405,909,779,082.88/726,928.86
  6. Step 6: Final answer
    x = 558,389.96

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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.