Home / 901,009.58-1,243,270.22-538,356.78

Finding the Fourth Proportional to 901,009.58, 1,243,270.22 and 538,356.78

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Solution

The fourth proportional to 901,009.58, 1,243,270.22 and 538,356.78 is: 742,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,009.58 : 1,243,270.22 = 538,356.78 : x
  2. Step 2: Convert to fraction form
    901,009.58/1,243,270.22 = 538,356.78/x
  3. Step 3: Cross multiply
    901,009.58x = 1,243,270.22 × 538,356.78
  4. Step 4: Simplify right side
    901,009.58x = 669,322,949,617.31
  5. Step 5: Solve for x
    x = 669,322,949,617.31/901,009.58
  6. Step 6: Final answer
    x = 742,858.86

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Double scale
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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.