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Finding the Fourth Proportional to 1,663,754.93, 2,295,981.80 and 899,808.49

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Solution

The fourth proportional to 1,663,754.93, 2,295,981.80 and 899,808.49 is: 1,241,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,754.93 : 2,295,981.80 = 899,808.49 : x
  2. Step 2: Convert to fraction form
    1,663,754.93/2,295,981.80 = 899,808.49/x
  3. Step 3: Cross multiply
    1,663,754.93x = 2,295,981.80 × 899,808.49
  4. Step 4: Simplify right side
    1,663,754.93x = 2,065,943,916,525.48
  5. Step 5: Solve for x
    x = 2,065,943,916,525.48/1,663,754.93
  6. Step 6: Final answer
    x = 1,241,735.71

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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.