Finding the Fourth Proportional to 1,431,681.98, 1,975,703.40 and 787,096.54
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Solution
The fourth proportional to 1,431,681.98, 1,975,703.40 and 787,096.54 is: 1,086,183.48
Step by Step Solution
- Step 1: Write the proportion equation
1,431,681.98 : 1,975,703.40 = 787,096.54 : x - Step 2: Convert to fraction form
1,431,681.98/1,975,703.40 = 787,096.54/x - Step 3: Cross multiply
1,431,681.98x = 1,975,703.40 × 787,096.54 - Step 4: Simplify right side
1,431,681.98x = 1,555,069,310,206.24 - Step 5: Solve for x
x = 1,555,069,310,206.24/1,431,681.98 - Step 6: Final answer
x = 1,086,183.48
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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.