Home / 1,284,783.09-1,925,072.15-777,807.47

Finding the Fourth Proportional to 1,284,783.09, 1,925,072.15 and 777,807.47

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Solution

The fourth proportional to 1,284,783.09, 1,925,072.15 and 777,807.47 is: 1,165,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,783.09 : 1,925,072.15 = 777,807.47 : x
  2. Step 2: Convert to fraction form
    1,284,783.09/1,925,072.15 = 777,807.47/x
  3. Step 3: Cross multiply
    1,284,783.09x = 1,925,072.15 × 777,807.47
  4. Step 4: Simplify right side
    1,284,783.09x = 1,497,335,485,044.56
  5. Step 5: Solve for x
    x = 1,497,335,485,044.56/1,284,783.09
  6. Step 6: Final answer
    x = 1,165,438.35

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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.