Home / 727,129.48-1,090,752.54-253,804.36

Finding the Fourth Proportional to 727,129.48, 1,090,752.54 and 253,804.36

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Solution

The fourth proportional to 727,129.48, 1,090,752.54 and 253,804.36 is: 380,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,129.48 : 1,090,752.54 = 253,804.36 : x
  2. Step 2: Convert to fraction form
    727,129.48/1,090,752.54 = 253,804.36/x
  3. Step 3: Cross multiply
    727,129.48x = 1,090,752.54 × 253,804.36
  4. Step 4: Simplify right side
    727,129.48x = 276,837,750,333.07
  5. Step 5: Solve for x
    x = 276,837,750,333.07/727,129.48
  6. Step 6: Final answer
    x = 380,726.90

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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.