Home / 839,320.84-1,259,353.05-439,866.64

Finding the Fourth Proportional to 839,320.84, 1,259,353.05 and 439,866.64

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Solution

The fourth proportional to 839,320.84, 1,259,353.05 and 439,866.64 is: 659,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,320.84 : 1,259,353.05 = 439,866.64 : x
  2. Step 2: Convert to fraction form
    839,320.84/1,259,353.05 = 439,866.64/x
  3. Step 3: Cross multiply
    839,320.84x = 1,259,353.05 × 439,866.64
  4. Step 4: Simplify right side
    839,320.84x = 553,947,394,677.25
  5. Step 5: Solve for x
    x = 553,947,394,677.25/839,320.84
  6. Step 6: Final answer
    x = 659,994.81

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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.