Home / 833,431.36-1,150,111.63-489,261.79

Finding the Fourth Proportional to 833,431.36, 1,150,111.63 and 489,261.79

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Solution

The fourth proportional to 833,431.36, 1,150,111.63 and 489,261.79 is: 675,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,431.36 : 1,150,111.63 = 489,261.79 : x
  2. Step 2: Convert to fraction form
    833,431.36/1,150,111.63 = 489,261.79/x
  3. Step 3: Cross multiply
    833,431.36x = 1,150,111.63 × 489,261.79
  4. Step 4: Simplify right side
    833,431.36x = 562,705,674,793.62
  5. Step 5: Solve for x
    x = 562,705,674,793.62/833,431.36
  6. Step 6: Final answer
    x = 675,167.39

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Double scale
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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.