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Finding the Fourth Proportional to 426,813.70, 589,001.69 and 235,825.73

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Solution

The fourth proportional to 426,813.70, 589,001.69 and 235,825.73 is: 325,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,813.70 : 589,001.69 = 235,825.73 : x
  2. Step 2: Convert to fraction form
    426,813.70/589,001.69 = 235,825.73/x
  3. Step 3: Cross multiply
    426,813.70x = 589,001.69 × 235,825.73
  4. Step 4: Simplify right side
    426,813.70x = 138,901,750,570.48
  5. Step 5: Solve for x
    x = 138,901,750,570.48/426,813.70
  6. Step 6: Final answer
    x = 325,438.83

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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.