Finding the Fourth Proportional to 919,271.70, 1,378,907.55 and 446,879.70
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Solution
The fourth proportional to 919,271.70, 1,378,907.55 and 446,879.70 is: 670,319.55
Step by Step Solution
- Step 1: Write the proportion equation
919,271.70 : 1,378,907.55 = 446,879.70 : x - Step 2: Convert to fraction form
919,271.70/1,378,907.55 = 446,879.70/x - Step 3: Cross multiply
919,271.70x = 1,378,907.55 × 446,879.70 - Step 4: Simplify right side
919,271.70x = 616,205,792,271.74 - Step 5: Solve for x
x = 616,205,792,271.74/919,271.70 - Step 6: Final answer
x = 670,319.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.