Home / 1,198,686.45-1,798,045.26-399,968

Finding the Fourth Proportional to 1,198,686.45, 1,798,045.26 and 399,968

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Solution

The fourth proportional to 1,198,686.45, 1,798,045.26 and 399,968 is: 599,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,686.45 : 1,798,045.26 = 399,968 : x
  2. Step 2: Convert to fraction form
    1,198,686.45/1,798,045.26 = 399,968/x
  3. Step 3: Cross multiply
    1,198,686.45x = 1,798,045.26 × 399,968
  4. Step 4: Simplify right side
    1,198,686.45x = 719,160,566,551.68
  5. Step 5: Solve for x
    x = 719,160,566,551.68/1,198,686.45
  6. Step 6: Final answer
    x = 599,957.20

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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.