Home / 1,369,446.61-1,889,496.79-885,429.34

Finding the Fourth Proportional to 1,369,446.61, 1,889,496.79 and 885,429.34

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Solution

The fourth proportional to 1,369,446.61, 1,889,496.79 and 885,429.34 is: 1,221,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,446.61 : 1,889,496.79 = 885,429.34 : x
  2. Step 2: Convert to fraction form
    1,369,446.61/1,889,496.79 = 885,429.34/x
  3. Step 3: Cross multiply
    1,369,446.61x = 1,889,496.79 × 885,429.34
  4. Step 4: Simplify right side
    1,369,446.61x = 1,673,015,899,170.48
  5. Step 5: Solve for x
    x = 1,673,015,899,170.48/1,369,446.61
  6. Step 6: Final answer
    x = 1,221,672.96

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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.