Home / 983,783.39-1,475,727.89-309,917.43

Finding the Fourth Proportional to 983,783.39, 1,475,727.89 and 309,917.43

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Solution

The fourth proportional to 983,783.39, 1,475,727.89 and 309,917.43 is: 464,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,783.39 : 1,475,727.89 = 309,917.43 : x
  2. Step 2: Convert to fraction form
    983,783.39/1,475,727.89 = 309,917.43/x
  3. Step 3: Cross multiply
    983,783.39x = 1,475,727.89 × 309,917.43
  4. Step 4: Simplify right side
    983,783.39x = 457,353,793,498.54
  5. Step 5: Solve for x
    x = 457,353,793,498.54/983,783.39
  6. Step 6: Final answer
    x = 464,892.78

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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.