Home / 1,308,860.13-1,806,006.88-728,007.51

Finding the Fourth Proportional to 1,308,860.13, 1,806,006.88 and 728,007.51

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Solution

The fourth proportional to 1,308,860.13, 1,806,006.88 and 728,007.51 is: 1,004,527.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,860.13 : 1,806,006.88 = 728,007.51 : x
  2. Step 2: Convert to fraction form
    1,308,860.13/1,806,006.88 = 728,007.51/x
  3. Step 3: Cross multiply
    1,308,860.13x = 1,806,006.88 × 728,007.51
  4. Step 4: Simplify right side
    1,308,860.13x = 1,314,786,579,434.20
  5. Step 5: Solve for x
    x = 1,314,786,579,434.20/1,308,860.13
  6. Step 6: Final answer
    x = 1,004,527.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.