Finding the Fourth Proportional to 2,153,313.90, 3,228,415.65 and 1,206,974.70
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Solution
The fourth proportional to 2,153,313.90, 3,228,415.65 and 1,206,974.70 is: 1,809,590.33
Step by Step Solution
- Step 1: Write the proportion equation
2,153,313.90 : 3,228,415.65 = 1,206,974.70 : x - Step 2: Convert to fraction form
2,153,313.90/3,228,415.65 = 1,206,974.70/x - Step 3: Cross multiply
2,153,313.90x = 3,228,415.65 × 1,206,974.70 - Step 4: Simplify right side
2,153,313.90x = 3,896,616,010,634.06 - Step 5: Solve for x
x = 3,896,616,010,634.06/2,153,313.90 - Step 6: Final answer
x = 1,809,590.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.