Finding the Fourth Proportional to 1,267,316.97, 1,748,830.55 and 723,431.13
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Solution
The fourth proportional to 1,267,316.97, 1,748,830.55 and 723,431.13 is: 998,296.79
Step by Step Solution
- Step 1: Write the proportion equation
1,267,316.97 : 1,748,830.55 = 723,431.13 : x - Step 2: Convert to fraction form
1,267,316.97/1,748,830.55 = 723,431.13/x - Step 3: Cross multiply
1,267,316.97x = 1,748,830.55 × 723,431.13 - Step 4: Simplify right side
1,267,316.97x = 1,265,158,457,347.87 - Step 5: Solve for x
x = 1,265,158,457,347.87/1,267,316.97 - Step 6: Final answer
x = 998,296.79
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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.