Home / 1,430,690.40-1,974,524.40-858,045.60

Finding the Fourth Proportional to 1,430,690.40, 1,974,524.40 and 858,045.60

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Solution

The fourth proportional to 1,430,690.40, 1,974,524.40 and 858,045.60 is: 1,184,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,690.40 : 1,974,524.40 = 858,045.60 : x
  2. Step 2: Convert to fraction form
    1,430,690.40/1,974,524.40 = 858,045.60/x
  3. Step 3: Cross multiply
    1,430,690.40x = 1,974,524.40 × 858,045.60
  4. Step 4: Simplify right side
    1,430,690.40x = 1,694,231,973,512.64
  5. Step 5: Solve for x
    x = 1,694,231,973,512.64/1,430,690.40
  6. Step 6: Final answer
    x = 1,184,205.87

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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.