Home / 1,205,920.90-1,810,954.95-853,408.90

Finding the Fourth Proportional to 1,205,920.90, 1,810,954.95 and 853,408.90

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Solution

The fourth proportional to 1,205,920.90, 1,810,954.95 and 853,408.90 is: 1,281,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,920.90 : 1,810,954.95 = 853,408.90 : x
  2. Step 2: Convert to fraction form
    1,205,920.90/1,810,954.95 = 853,408.90/x
  3. Step 3: Cross multiply
    1,205,920.90x = 1,810,954.95 × 853,408.90
  4. Step 4: Simplify right side
    1,205,920.90x = 1,545,485,071,829.06
  5. Step 5: Solve for x
    x = 1,545,485,071,829.06/1,205,920.90
  6. Step 6: Final answer
    x = 1,281,580.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.