Home / 778,854.60-1,166,313.60-621,390.60

Finding the Fourth Proportional to 778,854.60, 1,166,313.60 and 621,390.60

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Solution

The fourth proportional to 778,854.60, 1,166,313.60 and 621,390.60 is: 930,515.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,854.60 : 1,166,313.60 = 621,390.60 : x
  2. Step 2: Convert to fraction form
    778,854.60/1,166,313.60 = 621,390.60/x
  3. Step 3: Cross multiply
    778,854.60x = 1,166,313.60 × 621,390.60
  4. Step 4: Simplify right side
    778,854.60x = 724,736,307,692.16
  5. Step 5: Solve for x
    x = 724,736,307,692.16/778,854.60
  6. Step 6: Final answer
    x = 930,515.54

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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.