Finding the Fourth Proportional to 1,918,319.40, 2,879,811.90 and 971,202.60
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Solution
The fourth proportional to 1,918,319.40, 2,879,811.90 and 971,202.60 is: 1,457,984.94
Step by Step Solution
- Step 1: Write the proportion equation
1,918,319.40 : 2,879,811.90 = 971,202.60 : x - Step 2: Convert to fraction form
1,918,319.40/2,879,811.90 = 971,202.60/x - Step 3: Cross multiply
1,918,319.40x = 2,879,811.90 × 971,202.60 - Step 4: Simplify right side
1,918,319.40x = 2,796,880,804,790.94 - Step 5: Solve for x
x = 2,796,880,804,790.94/1,918,319.40 - Step 6: Final answer
x = 1,457,984.94
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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.