Finding the Fourth Proportional to 1,578,124.12, 2,177,767.56 and 889,789.96
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Solution
The fourth proportional to 1,578,124.12, 2,177,767.56 and 889,789.96 is: 1,227,885.49
Step by Step Solution
- Step 1: Write the proportion equation
1,578,124.12 : 2,177,767.56 = 889,789.96 : x - Step 2: Convert to fraction form
1,578,124.12/2,177,767.56 = 889,789.96/x - Step 3: Cross multiply
1,578,124.12x = 2,177,767.56 × 889,789.96 - Step 4: Simplify right side
1,578,124.12x = 1,937,755,710,101.70 - Step 5: Solve for x
x = 1,937,755,710,101.70/1,578,124.12 - Step 6: Final answer
x = 1,227,885.49
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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.