Home / 779,601.09-1,076,882.01-627,213.36

Finding the Fourth Proportional to 779,601.09, 1,076,882.01 and 627,213.36

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Solution

The fourth proportional to 779,601.09, 1,076,882.01 and 627,213.36 is: 866,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,601.09 : 1,076,882.01 = 627,213.36 : x
  2. Step 2: Convert to fraction form
    779,601.09/1,076,882.01 = 627,213.36/x
  3. Step 3: Cross multiply
    779,601.09x = 1,076,882.01 × 627,213.36
  4. Step 4: Simplify right side
    779,601.09x = 675,434,783,815.65
  5. Step 5: Solve for x
    x = 675,434,783,815.65/779,601.09
  6. Step 6: Final answer
    x = 866,385.12

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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.