Home / 992,823.60-1,489,235.40-728,439.60

Finding the Fourth Proportional to 992,823.60, 1,489,235.40 and 728,439.60

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Solution

The fourth proportional to 992,823.60, 1,489,235.40 and 728,439.60 is: 1,092,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,823.60 : 1,489,235.40 = 728,439.60 : x
  2. Step 2: Convert to fraction form
    992,823.60/1,489,235.40 = 728,439.60/x
  3. Step 3: Cross multiply
    992,823.60x = 1,489,235.40 × 728,439.60
  4. Step 4: Simplify right side
    992,823.60x = 1,084,818,039,081.84
  5. Step 5: Solve for x
    x = 1,084,818,039,081.84/992,823.60
  6. Step 6: Final answer
    x = 1,092,659.40

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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.