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Finding the Fourth Proportional to 707,181.71, 975,910.78 and 384,894.15

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Solution

The fourth proportional to 707,181.71, 975,910.78 and 384,894.15 is: 531,153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,181.71 : 975,910.78 = 384,894.15 : x
  2. Step 2: Convert to fraction form
    707,181.71/975,910.78 = 384,894.15/x
  3. Step 3: Cross multiply
    707,181.71x = 975,910.78 × 384,894.15
  4. Step 4: Simplify right side
    707,181.71x = 375,622,355,199.64
  5. Step 5: Solve for x
    x = 375,622,355,199.64/707,181.71
  6. Step 6: Final answer
    x = 531,153.94

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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.