Home / 728,660.40-1,092,601.80-307,460.40

Finding the Fourth Proportional to 728,660.40, 1,092,601.80 and 307,460.40

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Solution

The fourth proportional to 728,660.40, 1,092,601.80 and 307,460.40 is: 461,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,660.40 : 1,092,601.80 = 307,460.40 : x
  2. Step 2: Convert to fraction form
    728,660.40/1,092,601.80 = 307,460.40/x
  3. Step 3: Cross multiply
    728,660.40x = 1,092,601.80 × 307,460.40
  4. Step 4: Simplify right side
    728,660.40x = 335,931,786,468.72
  5. Step 5: Solve for x
    x = 335,931,786,468.72/728,660.40
  6. Step 6: Final answer
    x = 461,026.54

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1.5x scale

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.