Finding the Fourth Proportional to 3,138,780.62, 4,708,214.68 and 894,918.62
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Solution
The fourth proportional to 3,138,780.62, 4,708,214.68 and 894,918.62 is: 1,342,390.40
Step by Step Solution
- Step 1: Write the proportion equation
3,138,780.62 : 4,708,214.68 = 894,918.62 : x - Step 2: Convert to fraction form
3,138,780.62/4,708,214.68 = 894,918.62/x - Step 3: Cross multiply
3,138,780.62x = 4,708,214.68 × 894,918.62 - Step 4: Simplify right side
3,138,780.62x = 4,213,468,984,089.34 - Step 5: Solve for x
x = 4,213,468,984,089.34/3,138,780.62 - Step 6: Final answer
x = 1,342,390.40
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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.