Finding the Fourth Proportional to 715,076.13, 986,560.63 and 409,041.02
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Solution
The fourth proportional to 715,076.13, 986,560.63 and 409,041.02 is: 564,336.79
Step by Step Solution
- Step 1: Write the proportion equation
715,076.13 : 986,560.63 = 409,041.02 : x - Step 2: Convert to fraction form
715,076.13/986,560.63 = 409,041.02/x - Step 3: Cross multiply
715,076.13x = 986,560.63 × 409,041.02 - Step 4: Simplify right side
715,076.13x = 403,543,766,387.04 - Step 5: Solve for x
x = 403,543,766,387.04/715,076.13 - Step 6: Final answer
x = 564,336.79
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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.