Home / 489,023.10-733,534.65-426,815.10

Finding the Fourth Proportional to 489,023.10, 733,534.65 and 426,815.10

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Solution

The fourth proportional to 489,023.10, 733,534.65 and 426,815.10 is: 640,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,023.10 : 733,534.65 = 426,815.10 : x
  2. Step 2: Convert to fraction form
    489,023.10/733,534.65 = 426,815.10/x
  3. Step 3: Cross multiply
    489,023.10x = 733,534.65 × 426,815.10
  4. Step 4: Simplify right side
    489,023.10x = 313,083,664,993.22
  5. Step 5: Solve for x
    x = 313,083,664,993.22/489,023.10
  6. Step 6: Final answer
    x = 640,222.65

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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.