Finding the Fourth Proportional to 1,418,720.42, 1,957,881.35 and 774,175.98
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Solution
The fourth proportional to 1,418,720.42, 1,957,881.35 and 774,175.98 is: 1,068,388.59
Step by Step Solution
- Step 1: Write the proportion equation
1,418,720.42 : 1,957,881.35 = 774,175.98 : x - Step 2: Convert to fraction form
1,418,720.42/1,957,881.35 = 774,175.98/x - Step 3: Cross multiply
1,418,720.42x = 1,957,881.35 × 774,175.98 - Step 4: Simplify right side
1,418,720.42x = 1,515,744,712,859.97 - Step 5: Solve for x
x = 1,515,744,712,859.97/1,418,720.42 - Step 6: Final answer
x = 1,068,388.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.