Home / 1,208,706.42-1,668,046.32-664,856.22

Finding the Fourth Proportional to 1,208,706.42, 1,668,046.32 and 664,856.22

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Solution

The fourth proportional to 1,208,706.42, 1,668,046.32 and 664,856.22 is: 917,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,706.42 : 1,668,046.32 = 664,856.22 : x
  2. Step 2: Convert to fraction form
    1,208,706.42/1,668,046.32 = 664,856.22/x
  3. Step 3: Cross multiply
    1,208,706.42x = 1,668,046.32 × 664,856.22
  4. Step 4: Simplify right side
    1,208,706.42x = 1,109,010,971,100.11
  5. Step 5: Solve for x
    x = 1,109,010,971,100.11/1,208,706.42
  6. Step 6: Final answer
    x = 917,518.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.