Finding the Fourth Proportional to 1,578,058.77, 2,177,677.56 and 889,724.62
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Solution
The fourth proportional to 1,578,058.77, 2,177,677.56 and 889,724.62 is: 1,227,795.42
Step by Step Solution
- Step 1: Write the proportion equation
1,578,058.77 : 2,177,677.56 = 889,724.62 : x - Step 2: Convert to fraction form
1,578,058.77/2,177,677.56 = 889,724.62/x - Step 3: Cross multiply
1,578,058.77x = 2,177,677.56 × 889,724.62 - Step 4: Simplify right side
1,578,058.77x = 1,937,533,340,607.39 - Step 5: Solve for x
x = 1,937,533,340,607.39/1,578,058.77 - Step 6: Final answer
x = 1,227,795.42
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1.5x scale
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.