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Finding the Fourth Proportional to 706,376.64, 974,778.48 and 384,087.36

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Solution

The fourth proportional to 706,376.64, 974,778.48 and 384,087.36 is: 530,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,376.64 : 974,778.48 = 384,087.36 : x
  2. Step 2: Convert to fraction form
    706,376.64/974,778.48 = 384,087.36/x
  3. Step 3: Cross multiply
    706,376.64x = 974,778.48 × 384,087.36
  4. Step 4: Simplify right side
    706,376.64x = 374,400,092,968.01
  5. Step 5: Solve for x
    x = 374,400,092,968.01/706,376.64
  6. Step 6: Final answer
    x = 530,028.98

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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.