Home / 825,528.60-1,238,377.68-285,784.02

Finding the Fourth Proportional to 825,528.60, 1,238,377.68 and 285,784.02

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Solution

The fourth proportional to 825,528.60, 1,238,377.68 and 285,784.02 is: 428,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,528.60 : 1,238,377.68 = 285,784.02 : x
  2. Step 2: Convert to fraction form
    825,528.60/1,238,377.68 = 285,784.02/x
  3. Step 3: Cross multiply
    825,528.60x = 1,238,377.68 × 285,784.02
  4. Step 4: Simplify right side
    825,528.60x = 353,908,551,668.67
  5. Step 5: Solve for x
    x = 353,908,551,668.67/825,528.60
  6. Step 6: Final answer
    x = 428,705.38

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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.