Finding the Fourth Proportional to 4,752,485.80, 7,128,663.90 and 1,557,716.20
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Solution
The fourth proportional to 4,752,485.80, 7,128,663.90 and 1,557,716.20 is: 2,336,553.06
Step by Step Solution
- Step 1: Write the proportion equation
4,752,485.80 : 7,128,663.90 = 1,557,716.20 : x - Step 2: Convert to fraction form
4,752,485.80/7,128,663.90 = 1,557,716.20/x - Step 3: Cross multiply
4,752,485.80x = 7,128,663.90 × 1,557,716.20 - Step 4: Simplify right side
4,752,485.80x = 11,104,435,241,385.18 - Step 5: Solve for x
x = 11,104,435,241,385.18/4,752,485.80 - Step 6: Final answer
x = 2,336,553.06
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1.5x scale
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.