Finding the Fourth Proportional to 1,319,878.56, 1,821,432.36 and 716,266.56
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Solution
The fourth proportional to 1,319,878.56, 1,821,432.36 and 716,266.56 is: 988,447.82
Step by Step Solution
- Step 1: Write the proportion equation
1,319,878.56 : 1,821,432.36 = 716,266.56 : x - Step 2: Convert to fraction form
1,319,878.56/1,821,432.36 = 716,266.56/x - Step 3: Cross multiply
1,319,878.56x = 1,821,432.36 × 716,266.56 - Step 4: Simplify right side
1,319,878.56x = 1,304,631,090,769.88 - Step 5: Solve for x
x = 1,304,631,090,769.88/1,319,878.56 - Step 6: Final answer
x = 988,447.82
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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.