Finding the Fourth Proportional to 3,110,689.24, 4,292,751.36 and 1,679,905.24
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Solution
The fourth proportional to 3,110,689.24, 4,292,751.36 and 1,679,905.24 is: 2,318,269.34
Step by Step Solution
- Step 1: Write the proportion equation
3,110,689.24 : 4,292,751.36 = 1,679,905.24 : x - Step 2: Convert to fraction form
3,110,689.24/4,292,751.36 = 1,679,905.24/x - Step 3: Cross multiply
3,110,689.24x = 4,292,751.36 × 1,679,905.24 - Step 4: Simplify right side
3,110,689.24x = 7,211,415,503,681.13 - Step 5: Solve for x
x = 7,211,415,503,681.13/3,110,689.24 - Step 6: Final answer
x = 2,318,269.34
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1.5x scale
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.