Home / 1,198,686.87-1,798,045.88-399,968.42

Finding the Fourth Proportional to 1,198,686.87, 1,798,045.88 and 399,968.42

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Solution

The fourth proportional to 1,198,686.87, 1,798,045.88 and 399,968.42 is: 599,957.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,686.87 : 1,798,045.88 = 399,968.42 : x
  2. Step 2: Convert to fraction form
    1,198,686.87/1,798,045.88 = 399,968.42/x
  3. Step 3: Cross multiply
    1,198,686.87x = 1,798,045.88 × 399,968.42
  4. Step 4: Simplify right side
    1,198,686.87x = 719,161,558,721.04
  5. Step 5: Solve for x
    x = 719,161,558,721.04/1,198,686.87
  6. Step 6: Final answer
    x = 599,957.82

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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.