Finding the Fourth Proportional to 1,985,497.17, 2,978,246.12 and 1,387,626.09
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Solution
The fourth proportional to 1,985,497.17, 2,978,246.12 and 1,387,626.09 is: 2,081,439.39
Step by Step Solution
- Step 1: Write the proportion equation
1,985,497.17 : 2,978,246.12 = 1,387,626.09 : x - Step 2: Convert to fraction form
1,985,497.17/2,978,246.12 = 1,387,626.09/x - Step 3: Cross multiply
1,985,497.17x = 2,978,246.12 × 1,387,626.09 - Step 4: Simplify right side
1,985,497.17x = 4,132,692,011,615.14 - Step 5: Solve for x
x = 4,132,692,011,615.14/1,985,497.17 - Step 6: Final answer
x = 2,081,439.39
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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.