Finding the Fourth Proportional to 5,120,885.46, 7,679,639.31 and 1,708,231.62
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Solution
The fourth proportional to 5,120,885.46, 7,679,639.31 and 1,708,231.62 is: 2,561,784.05
Step by Step Solution
- Step 1: Write the proportion equation
5,120,885.46 : 7,679,639.31 = 1,708,231.62 : x - Step 2: Convert to fraction form
5,120,885.46/7,679,639.31 = 1,708,231.62/x - Step 3: Cross multiply
5,120,885.46x = 7,679,639.31 × 1,708,231.62 - Step 4: Simplify right side
5,120,885.46x = 13,118,602,699,536.98 - Step 5: Solve for x
x = 13,118,602,699,536.98/5,120,885.46 - Step 6: Final answer
x = 2,561,784.05
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1.5x scale
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.