Home / 1,430,664.40-1,974,488.52-858,019.60

Finding the Fourth Proportional to 1,430,664.40, 1,974,488.52 and 858,019.60

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Solution

The fourth proportional to 1,430,664.40, 1,974,488.52 and 858,019.60 is: 1,184,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,664.40 : 1,974,488.52 = 858,019.60 : x
  2. Step 2: Convert to fraction form
    1,430,664.40/1,974,488.52 = 858,019.60/x
  3. Step 3: Cross multiply
    1,430,664.40x = 1,974,488.52 × 858,019.60
  4. Step 4: Simplify right side
    1,430,664.40x = 1,694,149,850,134.99
  5. Step 5: Solve for x
    x = 1,694,149,850,134.99/1,430,664.40
  6. Step 6: Final answer
    x = 1,184,169.99

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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.