Finding the Fourth Proportional to 1,006,107.12, 1,388,398.86 and 553,398.12
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Solution
The fourth proportional to 1,006,107.12, 1,388,398.86 and 553,398.12 is: 763,673.47
Step by Step Solution
- Step 1: Write the proportion equation
1,006,107.12 : 1,388,398.86 = 553,398.12 : x - Step 2: Convert to fraction form
1,006,107.12/1,388,398.86 = 553,398.12/x - Step 3: Cross multiply
1,006,107.12x = 1,388,398.86 × 553,398.12 - Step 4: Simplify right side
1,006,107.12x = 768,337,318,934.14 - Step 5: Solve for x
x = 768,337,318,934.14/1,006,107.12 - Step 6: Final answer
x = 763,673.47
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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.