Home / 1,277,990.96-1,915,976.37-637,966.22

Finding the Fourth Proportional to 1,277,990.96, 1,915,976.37 and 637,966.22

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Solution

The fourth proportional to 1,277,990.96, 1,915,976.37 and 637,966.22 is: 956,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,990.96 : 1,915,976.37 = 637,966.22 : x
  2. Step 2: Convert to fraction form
    1,277,990.96/1,915,976.37 = 637,966.22/x
  3. Step 3: Cross multiply
    1,277,990.96x = 1,915,976.37 × 637,966.22
  4. Step 4: Simplify right side
    1,277,990.96x = 1,222,328,202,378.22
  5. Step 5: Solve for x
    x = 1,222,328,202,378.22/1,277,990.96
  6. Step 6: Final answer
    x = 956,445.11

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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.