Finding the Fourth Proportional to 4,602,721.42, 6,919,217.48 and 4,269,781.45
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Solution
The fourth proportional to 4,602,721.42, 6,919,217.48 and 4,269,781.45 is: 6,418,712.70
Step by Step Solution
- Step 1: Write the proportion equation
4,602,721.42 : 6,919,217.48 = 4,269,781.45 : x - Step 2: Convert to fraction form
4,602,721.42/6,919,217.48 = 4,269,781.45/x - Step 3: Cross multiply
4,602,721.42x = 6,919,217.48 × 4,269,781.45 - Step 4: Simplify right side
4,602,721.42x = 29,543,546,444,619.75 - Step 5: Solve for x
x = 29,543,546,444,619.75/4,602,721.42 - Step 6: Final answer
x = 6,418,712.70
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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.