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Finding the Fourth Proportional to 426,893.44, 589,135.62 and 245,632.90

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Solution

The fourth proportional to 426,893.44, 589,135.62 and 245,632.90 is: 338,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,893.44 : 589,135.62 = 245,632.90 : x
  2. Step 2: Convert to fraction form
    426,893.44/589,135.62 = 245,632.90/x
  3. Step 3: Cross multiply
    426,893.44x = 589,135.62 × 245,632.90
  4. Step 4: Simplify right side
    426,893.44x = 144,711,090,833.90
  5. Step 5: Solve for x
    x = 144,711,090,833.90/426,893.44
  6. Step 6: Final answer
    x = 338,986.45

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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.