Finding the Fourth Proportional to 1,868,354.52, 2,578,519.68 and 1,143,681.12
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Solution
The fourth proportional to 1,868,354.52, 2,578,519.68 and 1,143,681.12 is: 1,578,396.52
Step by Step Solution
- Step 1: Write the proportion equation
1,868,354.52 : 2,578,519.68 = 1,143,681.12 : x - Step 2: Convert to fraction form
1,868,354.52/2,578,519.68 = 1,143,681.12/x - Step 3: Cross multiply
1,868,354.52x = 2,578,519.68 × 1,143,681.12 - Step 4: Simplify right side
1,868,354.52x = 2,949,004,275,564.44 - Step 5: Solve for x
x = 2,949,004,275,564.44/1,868,354.52 - Step 6: Final answer
x = 1,578,396.52
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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.