Finding the Fourth Proportional to 1,418,987.91, 1,958,206.82 and 807,126.87
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Solution
The fourth proportional to 1,418,987.91, 1,958,206.82 and 807,126.87 is: 1,113,837.07
Step by Step Solution
- Step 1: Write the proportion equation
1,418,987.91 : 1,958,206.82 = 807,126.87 : x - Step 2: Convert to fraction form
1,418,987.91/1,958,206.82 = 807,126.87/x - Step 3: Cross multiply
1,418,987.91x = 1,958,206.82 × 807,126.87 - Step 4: Simplify right side
1,418,987.91x = 1,580,521,337,403.62 - Step 5: Solve for x
x = 1,580,521,337,403.62/1,418,987.91 - Step 6: Final answer
x = 1,113,837.07
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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.