Finding the Fourth Proportional to 1,521,129.81, 2,098,544.34 and 876,204.57
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Solution
The fourth proportional to 1,521,129.81, 2,098,544.34 and 876,204.57 is: 1,208,808.17
Step by Step Solution
- Step 1: Write the proportion equation
1,521,129.81 : 2,098,544.34 = 876,204.57 : x - Step 2: Convert to fraction form
1,521,129.81/2,098,544.34 = 876,204.57/x - Step 3: Cross multiply
1,521,129.81x = 2,098,544.34 × 876,204.57 - Step 4: Simplify right side
1,521,129.81x = 1,838,754,141,055.63 - Step 5: Solve for x
x = 1,838,754,141,055.63/1,521,129.81 - Step 6: Final answer
x = 1,208,808.17
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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.