Home / 1,323,280.60-1,984,920.90-763,408.60

Finding the Fourth Proportional to 1,323,280.60, 1,984,920.90 and 763,408.60

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Solution

The fourth proportional to 1,323,280.60, 1,984,920.90 and 763,408.60 is: 1,145,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,280.60 : 1,984,920.90 = 763,408.60 : x
  2. Step 2: Convert to fraction form
    1,323,280.60/1,984,920.90 = 763,408.60/x
  3. Step 3: Cross multiply
    1,323,280.60x = 1,984,920.90 × 763,408.60
  4. Step 4: Simplify right side
    1,323,280.60x = 1,515,305,685,379.74
  5. Step 5: Solve for x
    x = 1,515,305,685,379.74/1,323,280.60
  6. Step 6: Final answer
    x = 1,145,112.90

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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.