Home / 1,331,804.79-1,837,897.71-728,192.79

Finding the Fourth Proportional to 1,331,804.79, 1,837,897.71 and 728,192.79

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Solution

The fourth proportional to 1,331,804.79, 1,837,897.71 and 728,192.79 is: 1,004,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,804.79 : 1,837,897.71 = 728,192.79 : x
  2. Step 2: Convert to fraction form
    1,331,804.79/1,837,897.71 = 728,192.79/x
  3. Step 3: Cross multiply
    1,331,804.79x = 1,837,897.71 × 728,192.79
  4. Step 4: Simplify right side
    1,331,804.79x = 1,338,343,861,179.51
  5. Step 5: Solve for x
    x = 1,338,343,861,179.51/1,331,804.79
  6. Step 6: Final answer
    x = 1,004,909.93

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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.