Home / 681,431.16-940,362.08-375,535.81

Finding the Fourth Proportional to 681,431.16, 940,362.08 and 375,535.81

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Solution

The fourth proportional to 681,431.16, 940,362.08 and 375,535.81 is: 518,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,431.16 : 940,362.08 = 375,535.81 : x
  2. Step 2: Convert to fraction form
    681,431.16/940,362.08 = 375,535.81/x
  3. Step 3: Cross multiply
    681,431.16x = 940,362.08 × 375,535.81
  4. Step 4: Simplify right side
    681,431.16x = 353,139,631,177.50
  5. Step 5: Solve for x
    x = 353,139,631,177.50/681,431.16
  6. Step 6: Final answer
    x = 518,232.29

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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.