Home / 812,199.34-1,120,483.26-489,730.29

Finding the Fourth Proportional to 812,199.34, 1,120,483.26 and 489,730.29

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Solution

The fourth proportional to 812,199.34, 1,120,483.26 and 489,730.29 is: 675,615.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,199.34 : 1,120,483.26 = 489,730.29 : x
  2. Step 2: Convert to fraction form
    812,199.34/1,120,483.26 = 489,730.29/x
  3. Step 3: Cross multiply
    812,199.34x = 1,120,483.26 × 489,730.29
  4. Step 4: Simplify right side
    812,199.34x = 548,734,589,411.29
  5. Step 5: Solve for x
    x = 548,734,589,411.29/812,199.34
  6. Step 6: Final answer
    x = 675,615.66

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1.5x scale

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.