Finding the Fourth Proportional to 1,516,589.11, 2,091,931.80 and 1,153,216.33
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Solution
The fourth proportional to 1,516,589.11, 2,091,931.80 and 1,153,216.33 is: 1,590,707.66
Step by Step Solution
- Step 1: Write the proportion equation
1,516,589.11 : 2,091,931.80 = 1,153,216.33 : x - Step 2: Convert to fraction form
1,516,589.11/2,091,931.80 = 1,153,216.33/x - Step 3: Cross multiply
1,516,589.11x = 2,091,931.80 × 1,153,216.33 - Step 4: Simplify right side
1,516,589.11x = 2,412,449,913,006.29 - Step 5: Solve for x
x = 2,412,449,913,006.29/1,516,589.11 - Step 6: Final answer
x = 1,590,707.66
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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.