Home / 1,245,254.80-1,868,465.40-646,891.60

Finding the Fourth Proportional to 1,245,254.80, 1,868,465.40 and 646,891.60

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Solution

The fourth proportional to 1,245,254.80, 1,868,465.40 and 646,891.60 is: 970,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,254.80 : 1,868,465.40 = 646,891.60 : x
  2. Step 2: Convert to fraction form
    1,245,254.80/1,868,465.40 = 646,891.60/x
  3. Step 3: Cross multiply
    1,245,254.80x = 1,868,465.40 × 646,891.60
  4. Step 4: Simplify right side
    1,245,254.80x = 1,208,694,572,150.64
  5. Step 5: Solve for x
    x = 1,208,694,572,150.64/1,245,254.80
  6. Step 6: Final answer
    x = 970,640.36

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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.