Home / 1,766,858.40-2,650,978.80-645,040.80

Finding the Fourth Proportional to 1,766,858.40, 2,650,978.80 and 645,040.80

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Solution

The fourth proportional to 1,766,858.40, 2,650,978.80 and 645,040.80 is: 967,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,858.40 : 2,650,978.80 = 645,040.80 : x
  2. Step 2: Convert to fraction form
    1,766,858.40/2,650,978.80 = 645,040.80/x
  3. Step 3: Cross multiply
    1,766,858.40x = 2,650,978.80 × 645,040.80
  4. Step 4: Simplify right side
    1,766,858.40x = 1,709,989,485,935.04
  5. Step 5: Solve for x
    x = 1,709,989,485,935.04/1,766,858.40
  6. Step 6: Final answer
    x = 967,813.54

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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.