Finding the Fourth Proportional to 2,163,888.68, 2,985,160.26 and 1,400,188.84
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Solution
The fourth proportional to 2,163,888.68, 2,985,160.26 and 1,400,188.84 is: 1,931,609.57
Step by Step Solution
- Step 1: Write the proportion equation
2,163,888.68 : 2,985,160.26 = 1,400,188.84 : x - Step 2: Convert to fraction form
2,163,888.68/2,985,160.26 = 1,400,188.84/x - Step 3: Cross multiply
2,163,888.68x = 2,985,160.26 × 1,400,188.84 - Step 4: Simplify right side
2,163,888.68x = 4,179,788,081,663.50 - Step 5: Solve for x
x = 4,179,788,081,663.50/2,163,888.68 - Step 6: Final answer
x = 1,931,609.57
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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.