Home / 1,277,990.46-1,915,975.62-637,965.72

Finding the Fourth Proportional to 1,277,990.46, 1,915,975.62 and 637,965.72

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Solution

The fourth proportional to 1,277,990.46, 1,915,975.62 and 637,965.72 is: 956,444.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,990.46 : 1,915,975.62 = 637,965.72 : x
  2. Step 2: Convert to fraction form
    1,277,990.46/1,915,975.62 = 637,965.72/x
  3. Step 3: Cross multiply
    1,277,990.46x = 1,915,975.62 × 637,965.72
  4. Step 4: Simplify right side
    1,277,990.46x = 1,222,326,765,915.75
  5. Step 5: Solve for x
    x = 1,222,326,765,915.75/1,277,990.46
  6. Step 6: Final answer
    x = 956,444.36

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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.