Finding the Fourth Proportional to 1,066,430.05, 1,471,690.97 and 636,747.73
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Solution
The fourth proportional to 1,066,430.05, 1,471,690.97 and 636,747.73 is: 878,722.31
Step by Step Solution
- Step 1: Write the proportion equation
1,066,430.05 : 1,471,690.97 = 636,747.73 : x - Step 2: Convert to fraction form
1,066,430.05/1,471,690.97 = 636,747.73/x - Step 3: Cross multiply
1,066,430.05x = 1,471,690.97 × 636,747.73 - Step 4: Simplify right side
1,066,430.05x = 937,095,881,225.26 - Step 5: Solve for x
x = 937,095,881,225.26/1,066,430.05 - Step 6: Final answer
x = 878,722.31
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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.