Home / 868,020.69-1,302,871.40-419,056.58

Finding the Fourth Proportional to 868,020.69, 1,302,871.40 and 419,056.58

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Solution

The fourth proportional to 868,020.69, 1,302,871.40 and 419,056.58 is: 628,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,020.69 : 1,302,871.40 = 419,056.58 : x
  2. Step 2: Convert to fraction form
    868,020.69/1,302,871.40 = 419,056.58/x
  3. Step 3: Cross multiply
    868,020.69x = 1,302,871.40 × 419,056.58
  4. Step 4: Simplify right side
    868,020.69x = 545,976,836,975.77
  5. Step 5: Solve for x
    x = 545,976,836,975.77/868,020.69
  6. Step 6: Final answer
    x = 628,990.58

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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.