Home / 681,683.64-940,680.48-375,743.16

Finding the Fourth Proportional to 681,683.64, 940,680.48 and 375,743.16

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Solution

The fourth proportional to 681,683.64, 940,680.48 and 375,743.16 is: 518,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,683.64 : 940,680.48 = 375,743.16 : x
  2. Step 2: Convert to fraction form
    681,683.64/940,680.48 = 375,743.16/x
  3. Step 3: Cross multiply
    681,683.64x = 940,680.48 × 375,743.16
  4. Step 4: Simplify right side
    681,683.64x = 353,454,256,105.52
  5. Step 5: Solve for x
    x = 353,454,256,105.52/681,683.64
  6. Step 6: Final answer
    x = 518,501.89

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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.