Finding the Fourth Proportional to 1,006,238.80, 1,388,631.12 and 553,529.80
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Solution
The fourth proportional to 1,006,238.80, 1,388,631.12 and 553,529.80 is: 763,882.99
Step by Step Solution
- Step 1: Write the proportion equation
1,006,238.80 : 1,388,631.12 = 553,529.80 : x - Step 2: Convert to fraction form
1,006,238.80/1,388,631.12 = 553,529.80/x - Step 3: Cross multiply
1,006,238.80x = 1,388,631.12 × 553,529.80 - Step 4: Simplify right side
1,006,238.80x = 768,648,706,127.38 - Step 5: Solve for x
x = 768,648,706,127.38/1,006,238.80 - Step 6: Final answer
x = 763,882.99
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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.