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Finding the Fourth Proportional to 681,607.86, 940,659.93 and 375,683.82

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Solution

The fourth proportional to 681,607.86, 940,659.93 and 375,683.82 is: 518,466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,607.86 : 940,659.93 = 375,683.82 : x
  2. Step 2: Convert to fraction form
    681,607.86/940,659.93 = 375,683.82/x
  3. Step 3: Cross multiply
    681,607.86x = 940,659.93 × 375,683.82
  4. Step 4: Simplify right side
    681,607.86x = 353,390,715,823.33
  5. Step 5: Solve for x
    x = 353,390,715,823.33/681,607.86
  6. Step 6: Final answer
    x = 518,466.32

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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.