Home / 1,430,895.70-1,974,205.46-857,726.74

Finding the Fourth Proportional to 1,430,895.70, 1,974,205.46 and 857,726.74

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Solution

The fourth proportional to 1,430,895.70, 1,974,205.46 and 857,726.74 is: 1,183,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,895.70 : 1,974,205.46 = 857,726.74 : x
  2. Step 2: Convert to fraction form
    1,430,895.70/1,974,205.46 = 857,726.74/x
  3. Step 3: Cross multiply
    1,430,895.70x = 1,974,205.46 × 857,726.74
  4. Step 4: Simplify right side
    1,430,895.70x = 1,693,328,809,007.37
  5. Step 5: Solve for x
    x = 1,693,328,809,007.37/1,430,895.70
  6. Step 6: Final answer
    x = 1,183,404.78

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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.