Finding the Fourth Proportional to 1,284,214.08, 1,772,211.01 and 740,347.28
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Solution
The fourth proportional to 1,284,214.08, 1,772,211.01 and 740,347.28 is: 1,021,676.70
Step by Step Solution
- Step 1: Write the proportion equation
1,284,214.08 : 1,772,211.01 = 740,347.28 : x - Step 2: Convert to fraction form
1,284,214.08/1,772,211.01 = 740,347.28/x - Step 3: Cross multiply
1,284,214.08x = 1,772,211.01 × 740,347.28 - Step 4: Simplify right side
1,284,214.08x = 1,312,051,600,839.55 - Step 5: Solve for x
x = 1,312,051,600,839.55/1,284,214.08 - Step 6: Final answer
x = 1,021,676.70
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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.