Home / 1,112,112.67-1,668,298.61-402,474.91

Finding the Fourth Proportional to 1,112,112.67, 1,668,298.61 and 402,474.91

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Solution

The fourth proportional to 1,112,112.67, 1,668,298.61 and 402,474.91 is: 603,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,112.67 : 1,668,298.61 = 402,474.91 : x
  2. Step 2: Convert to fraction form
    1,112,112.67/1,668,298.61 = 402,474.91/x
  3. Step 3: Cross multiply
    1,112,112.67x = 1,668,298.61 × 402,474.91
  4. Step 4: Simplify right side
    1,112,112.67x = 671,448,332,912.88
  5. Step 5: Solve for x
    x = 671,448,332,912.88/1,112,112.67
  6. Step 6: Final answer
    x = 603,759.27

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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.