Home / 1,245,250.80-1,868,459.40-646,887.60

Finding the Fourth Proportional to 1,245,250.80, 1,868,459.40 and 646,887.60

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Solution

The fourth proportional to 1,245,250.80, 1,868,459.40 and 646,887.60 is: 970,634.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,250.80 : 1,868,459.40 = 646,887.60 : x
  2. Step 2: Convert to fraction form
    1,245,250.80/1,868,459.40 = 646,887.60/x
  3. Step 3: Cross multiply
    1,245,250.80x = 1,868,459.40 × 646,887.60
  4. Step 4: Simplify right side
    1,245,250.80x = 1,208,683,216,963.44
  5. Step 5: Solve for x
    x = 1,208,683,216,963.44/1,245,250.80
  6. Step 6: Final answer
    x = 970,634.36

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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.