Finding the Fourth Proportional to 2,166,285.76, 2,989,567.74 and 1,199,416.02
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Solution
The fourth proportional to 2,166,285.76, 2,989,567.74 and 1,199,416.02 is: 1,655,245.82
Step by Step Solution
- Step 1: Write the proportion equation
2,166,285.76 : 2,989,567.74 = 1,199,416.02 : x - Step 2: Convert to fraction form
2,166,285.76/2,989,567.74 = 1,199,416.02/x - Step 3: Cross multiply
2,166,285.76x = 2,989,567.74 × 1,199,416.02 - Step 4: Simplify right side
2,166,285.76x = 3,585,735,440,231.20 - Step 5: Solve for x
x = 3,585,735,440,231.20/2,166,285.76 - Step 6: Final answer
x = 1,655,245.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.