Home / 681,428.15-940,357.93-375,532.81

Finding the Fourth Proportional to 681,428.15, 940,357.93 and 375,532.81

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Solution

The fourth proportional to 681,428.15, 940,357.93 and 375,532.81 is: 518,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,428.15 : 940,357.93 = 375,532.81 : x
  2. Step 2: Convert to fraction form
    681,428.15/940,357.93 = 375,532.81/x
  3. Step 3: Cross multiply
    681,428.15x = 940,357.93 × 375,532.81
  4. Step 4: Simplify right side
    681,428.15x = 353,135,254,329.27
  5. Step 5: Solve for x
    x = 353,135,254,329.27/681,428.15
  6. Step 6: Final answer
    x = 518,228.16

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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.