Finding the Fourth Proportional to 1,421,430.93, 1,961,574.84 and 776,850.93
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Solution
The fourth proportional to 1,421,430.93, 1,961,574.84 and 776,850.93 is: 1,072,054.37
Step by Step Solution
- Step 1: Write the proportion equation
1,421,430.93 : 1,961,574.84 = 776,850.93 : x - Step 2: Convert to fraction form
1,421,430.93/1,961,574.84 = 776,850.93/x - Step 3: Cross multiply
1,421,430.93x = 1,961,574.84 × 776,850.93 - Step 4: Simplify right side
1,421,430.93x = 1,523,851,238,718.60 - Step 5: Solve for x
x = 1,523,851,238,718.60/1,421,430.93 - Step 6: Final answer
x = 1,072,054.37
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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.