Finding the Fourth Proportional to 1,102,420.32, 1,518,190.02 and 992,589.12
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Solution
The fourth proportional to 1,102,420.32, 1,518,190.02 and 992,589.12 is: 1,366,936.79
Step by Step Solution
- Step 1: Write the proportion equation
1,102,420.32 : 1,518,190.02 = 992,589.12 : x - Step 2: Convert to fraction form
1,102,420.32/1,518,190.02 = 992,589.12/x - Step 3: Cross multiply
1,102,420.32x = 1,518,190.02 × 992,589.12 - Step 4: Simplify right side
1,102,420.32x = 1,506,938,895,944.58 - Step 5: Solve for x
x = 1,506,938,895,944.58/1,102,420.32 - Step 6: Final answer
x = 1,366,936.79
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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.