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Finding the Fourth Proportional to 1,168,333, 1,612,299.63 and 631,789

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Solution

The fourth proportional to 1,168,333, 1,612,299.63 and 631,789 is: 871,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,333 : 1,612,299.63 = 631,789 : x
  2. Step 2: Convert to fraction form
    1,168,333/1,612,299.63 = 631,789/x
  3. Step 3: Cross multiply
    1,168,333x = 1,612,299.63 × 631,789
  4. Step 4: Simplify right side
    1,168,333x = 1,018,633,170,938.07
  5. Step 5: Solve for x
    x = 1,018,633,170,938.07/1,168,333
  6. Step 6: Final answer
    x = 871,868.87

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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.