Finding the Fourth Proportional to 1,266,863.09, 1,748,299.48 and 722,988.05
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Solution
The fourth proportional to 1,266,863.09, 1,748,299.48 and 722,988.05 is: 997,739.72
Step by Step Solution
- Step 1: Write the proportion equation
1,266,863.09 : 1,748,299.48 = 722,988.05 : x - Step 2: Convert to fraction form
1,266,863.09/1,748,299.48 = 722,988.05/x - Step 3: Cross multiply
1,266,863.09x = 1,748,299.48 × 722,988.05 - Step 4: Simplify right side
1,266,863.09x = 1,263,999,621,312.25 - Step 5: Solve for x
x = 1,263,999,621,312.25/1,266,863.09 - Step 6: Final answer
x = 997,739.72
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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.