Finding the Fourth Proportional to 1,138,030.18, 1,570,463.33 and 621,772.99
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Solution
The fourth proportional to 1,138,030.18, 1,570,463.33 and 621,772.99 is: 858,036.71
Step by Step Solution
- Step 1: Write the proportion equation
1,138,030.18 : 1,570,463.33 = 621,772.99 : x - Step 2: Convert to fraction form
1,138,030.18/1,570,463.33 = 621,772.99/x - Step 3: Cross multiply
1,138,030.18x = 1,570,463.33 × 621,772.99 - Step 4: Simplify right side
1,138,030.18x = 976,471,673,344.43 - Step 5: Solve for x
x = 976,471,673,344.43/1,138,030.18 - Step 6: Final answer
x = 858,036.71
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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.