Finding the Fourth Proportional to 1,421,473.80, 1,961,633.93 and 776,894.01
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Solution
The fourth proportional to 1,421,473.80, 1,961,633.93 and 776,894.01 is: 1,072,113.78
Step by Step Solution
- Step 1: Write the proportion equation
1,421,473.80 : 1,961,633.93 = 776,894.01 : x - Step 2: Convert to fraction form
1,421,473.80/1,961,633.93 = 776,894.01/x - Step 3: Cross multiply
1,421,473.80x = 1,961,633.93 × 776,894.01 - Step 4: Simplify right side
1,421,473.80x = 1,523,981,646,145.29 - Step 5: Solve for x
x = 1,523,981,646,145.29/1,421,473.80 - Step 6: Final answer
x = 1,072,113.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.