Home / 911,623.80-1,367,435.70-806,647.80

Finding the Fourth Proportional to 911,623.80, 1,367,435.70 and 806,647.80

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Solution

The fourth proportional to 911,623.80, 1,367,435.70 and 806,647.80 is: 1,209,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,623.80 : 1,367,435.70 = 806,647.80 : x
  2. Step 2: Convert to fraction form
    911,623.80/1,367,435.70 = 806,647.80/x
  3. Step 3: Cross multiply
    911,623.80x = 1,367,435.70 × 806,647.80
  4. Step 4: Simplify right side
    911,623.80x = 1,103,038,999,046.46
  5. Step 5: Solve for x
    x = 1,103,038,999,046.46/911,623.80
  6. Step 6: Final answer
    x = 1,209,971.70

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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.