Home / 1,310,938.54-1,809,128.72-737,998.81

Finding the Fourth Proportional to 1,310,938.54, 1,809,128.72 and 737,998.81

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Solution

The fourth proportional to 1,310,938.54, 1,809,128.72 and 737,998.81 is: 1,018,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,938.54 : 1,809,128.72 = 737,998.81 : x
  2. Step 2: Convert to fraction form
    1,310,938.54/1,809,128.72 = 737,998.81/x
  3. Step 3: Cross multiply
    1,310,938.54x = 1,809,128.72 × 737,998.81
  4. Step 4: Simplify right side
    1,310,938.54x = 1,335,134,842,496.82
  5. Step 5: Solve for x
    x = 1,335,134,842,496.82/1,310,938.54
  6. Step 6: Final answer
    x = 1,018,457.24

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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.