Home / 1,387,503.81-2,081,674.89-658,586.43

Finding the Fourth Proportional to 1,387,503.81, 2,081,674.89 and 658,586.43

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Solution

The fourth proportional to 1,387,503.81, 2,081,674.89 and 658,586.43 is: 988,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,503.81 : 2,081,674.89 = 658,586.43 : x
  2. Step 2: Convert to fraction form
    1,387,503.81/2,081,674.89 = 658,586.43/x
  3. Step 3: Cross multiply
    1,387,503.81x = 2,081,674.89 × 658,586.43
  4. Step 4: Simplify right side
    1,387,503.81x = 1,370,962,834,225.74
  5. Step 5: Solve for x
    x = 1,370,962,834,225.74/1,387,503.81
  6. Step 6: Final answer
    x = 988,078.61

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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.