Home / 489,929.78-734,902.04-170,091.81

Finding the Fourth Proportional to 489,929.78, 734,902.04 and 170,091.81

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Solution

The fourth proportional to 489,929.78, 734,902.04 and 170,091.81 is: 255,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,929.78 : 734,902.04 = 170,091.81 : x
  2. Step 2: Convert to fraction form
    489,929.78/734,902.04 = 170,091.81/x
  3. Step 3: Cross multiply
    489,929.78x = 734,902.04 × 170,091.81
  4. Step 4: Simplify right side
    489,929.78x = 125,000,818,581.52
  5. Step 5: Solve for x
    x = 125,000,818,581.52/489,929.78
  6. Step 6: Final answer
    x = 255,140.27

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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.