Finding the Fourth Proportional to 928,707.32, 1,279,880.69 and 724,434.63
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Solution
The fourth proportional to 928,707.32, 1,279,880.69 and 724,434.63 is: 998,366.09
Step by Step Solution
- Step 1: Write the proportion equation
928,707.32 : 1,279,880.69 = 724,434.63 : x - Step 2: Convert to fraction form
928,707.32/1,279,880.69 = 724,434.63/x - Step 3: Cross multiply
928,707.32x = 1,279,880.69 × 724,434.63 - Step 4: Simplify right side
928,707.32x = 927,189,890,482.12 - Step 5: Solve for x
x = 927,189,890,482.12/928,707.32 - Step 6: Final answer
x = 998,366.09
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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.