Finding the Fourth Proportional to 1,868,444.84, 2,578,453.83 and 1,009,005.09
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Solution
The fourth proportional to 1,868,444.84, 2,578,453.83 and 1,009,005.09 is: 1,392,427.00
Step by Step Solution
- Step 1: Write the proportion equation
1,868,444.84 : 2,578,453.83 = 1,009,005.09 : x - Step 2: Convert to fraction form
1,868,444.84/2,578,453.83 = 1,009,005.09/x - Step 3: Cross multiply
1,868,444.84x = 2,578,453.83 × 1,009,005.09 - Step 4: Simplify right side
1,868,444.84x = 2,601,673,038,799.99 - Step 5: Solve for x
x = 2,601,673,038,799.99/1,868,444.84 - Step 6: Final answer
x = 1,392,427.00
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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.