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Finding the Fourth Proportional to 706,661.40, 975,208.77 and 384,388.73

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Solution

The fourth proportional to 706,661.40, 975,208.77 and 384,388.73 is: 530,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,661.40 : 975,208.77 = 384,388.73 : x
  2. Step 2: Convert to fraction form
    706,661.40/975,208.77 = 384,388.73/x
  3. Step 3: Cross multiply
    706,661.40x = 975,208.77 × 384,388.73
  4. Step 4: Simplify right side
    706,661.40x = 374,859,255,709.12
  5. Step 5: Solve for x
    x = 374,859,255,709.12/706,661.40
  6. Step 6: Final answer
    x = 530,465.16

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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.