Finding the Fourth Proportional to 2,878,688.40, 4,318,615.80 and 985,621.20
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Solution
The fourth proportional to 2,878,688.40, 4,318,615.80 and 985,621.20 is: 1,478,631.48
Step by Step Solution
- Step 1: Write the proportion equation
2,878,688.40 : 4,318,615.80 = 985,621.20 : x - Step 2: Convert to fraction form
2,878,688.40/4,318,615.80 = 985,621.20/x - Step 3: Cross multiply
2,878,688.40x = 4,318,615.80 × 985,621.20 - Step 4: Simplify right side
2,878,688.40x = 4,256,519,287,134.96 - Step 5: Solve for x
x = 4,256,519,287,134.96/2,878,688.40 - Step 6: Final answer
x = 1,478,631.48
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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.