Home / 1,430,895.45-1,974,205.11-857,726.49

Finding the Fourth Proportional to 1,430,895.45, 1,974,205.11 and 857,726.49

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Solution

The fourth proportional to 1,430,895.45, 1,974,205.11 and 857,726.49 is: 1,183,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,895.45 : 1,974,205.11 = 857,726.49 : x
  2. Step 2: Convert to fraction form
    1,430,895.45/1,974,205.11 = 857,726.49/x
  3. Step 3: Cross multiply
    1,430,895.45x = 1,974,205.11 × 857,726.49
  4. Step 4: Simplify right side
    1,430,895.45x = 1,693,328,019,540.36
  5. Step 5: Solve for x
    x = 1,693,328,019,540.36/1,430,895.45
  6. Step 6: Final answer
    x = 1,183,404.43

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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.