Home / 538,001.09-742,413.06-308,546.51

Finding the Fourth Proportional to 538,001.09, 742,413.06 and 308,546.51

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Solution

The fourth proportional to 538,001.09, 742,413.06 and 308,546.51 is: 425,777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,001.09 : 742,413.06 = 308,546.51 : x
  2. Step 2: Convert to fraction form
    538,001.09/742,413.06 = 308,546.51/x
  3. Step 3: Cross multiply
    538,001.09x = 742,413.06 × 308,546.51
  4. Step 4: Simplify right side
    538,001.09x = 229,068,954,929.36
  5. Step 5: Solve for x
    x = 229,068,954,929.36/538,001.09
  6. Step 6: Final answer
    x = 425,777.87

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1.5x scale

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.