Home / 770,563.74-1,063,490.78-443,813.95

Finding the Fourth Proportional to 770,563.74, 1,063,490.78 and 443,813.95

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Solution

The fourth proportional to 770,563.74, 1,063,490.78 and 443,813.95 is: 612,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,563.74 : 1,063,490.78 = 443,813.95 : x
  2. Step 2: Convert to fraction form
    770,563.74/1,063,490.78 = 443,813.95/x
  3. Step 3: Cross multiply
    770,563.74x = 1,063,490.78 × 443,813.95
  4. Step 4: Simplify right side
    770,563.74x = 471,992,038,982.58
  5. Step 5: Solve for x
    x = 471,992,038,982.58/770,563.74
  6. Step 6: Final answer
    x = 612,528.22

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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.