Home / 929,885.78-1,282,912.34-607,781.86

Finding the Fourth Proportional to 929,885.78, 1,282,912.34 and 607,781.86

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Solution

The fourth proportional to 929,885.78, 1,282,912.34 and 607,781.86 is: 838,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,885.78 : 1,282,912.34 = 607,781.86 : x
  2. Step 2: Convert to fraction form
    929,885.78/1,282,912.34 = 607,781.86/x
  3. Step 3: Cross multiply
    929,885.78x = 1,282,912.34 × 607,781.86
  4. Step 4: Simplify right side
    929,885.78x = 779,730,848,222.15
  5. Step 5: Solve for x
    x = 779,730,848,222.15/929,885.78
  6. Step 6: Final answer
    x = 838,523.25

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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.