Home / 990,490.23-1,364,428.03-844,821.45

Finding the Fourth Proportional to 990,490.23, 1,364,428.03 and 844,821.45

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Solution

The fourth proportional to 990,490.23, 1,364,428.03 and 844,821.45 is: 1,163,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,490.23 : 1,364,428.03 = 844,821.45 : x
  2. Step 2: Convert to fraction form
    990,490.23/1,364,428.03 = 844,821.45/x
  3. Step 3: Cross multiply
    990,490.23x = 1,364,428.03 × 844,821.45
  4. Step 4: Simplify right side
    990,490.23x = 1,152,698,066,725.24
  5. Step 5: Solve for x
    x = 1,152,698,066,725.24/990,490.23
  6. Step 6: Final answer
    x = 1,163,765.21

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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.