Finding the Fourth Proportional to 1,868,645.88, 2,578,731.12 and 1,009,206.18
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Solution
The fourth proportional to 1,868,645.88, 2,578,731.12 and 1,009,206.18 is: 1,392,704.42
Step by Step Solution
- Step 1: Write the proportion equation
1,868,645.88 : 2,578,731.12 = 1,009,206.18 : x - Step 2: Convert to fraction form
1,868,645.88/2,578,731.12 = 1,009,206.18/x - Step 3: Cross multiply
1,868,645.88x = 2,578,731.12 × 1,009,206.18 - Step 4: Simplify right side
1,868,645.88x = 2,602,471,382,862.32 - Step 5: Solve for x
x = 2,602,471,382,862.32/1,868,645.88 - Step 6: Final answer
x = 1,392,704.42
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.