Finding the Fourth Proportional to 1,487,599.20, 2,233,731.60 and 857,743.20
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Solution
The fourth proportional to 1,487,599.20, 2,233,731.60 and 857,743.20 is: 1,287,959.88
Step by Step Solution
- Step 1: Write the proportion equation
1,487,599.20 : 2,233,731.60 = 857,743.20 : x - Step 2: Convert to fraction form
1,487,599.20/2,233,731.60 = 857,743.20/x - Step 3: Cross multiply
1,487,599.20x = 2,233,731.60 × 857,743.20 - Step 4: Simplify right side
1,487,599.20x = 1,915,968,090,525.12 - Step 5: Solve for x
x = 1,915,968,090,525.12/1,487,599.20 - Step 6: Final answer
x = 1,287,959.88
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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.