Finding the Fourth Proportional to 896,087.20, 1,344,368.40 and 390,431.20
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Solution
The fourth proportional to 896,087.20, 1,344,368.40 and 390,431.20 is: 585,750.32
Step by Step Solution
- Step 1: Write the proportion equation
896,087.20 : 1,344,368.40 = 390,431.20 : x - Step 2: Convert to fraction form
896,087.20/1,344,368.40 = 390,431.20/x - Step 3: Cross multiply
896,087.20x = 1,344,368.40 × 390,431.20 - Step 4: Simplify right side
896,087.20x = 524,883,367,654.08 - Step 5: Solve for x
x = 524,883,367,654.08/896,087.20 - Step 6: Final answer
x = 585,750.32
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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.