Finding the Fourth Proportional to 832,318.23, 1,148,631.74 and 469,754.64
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Solution
The fourth proportional to 832,318.23, 1,148,631.74 and 469,754.64 is: 648,279.79
Step by Step Solution
- Step 1: Write the proportion equation
832,318.23 : 1,148,631.74 = 469,754.64 : x - Step 2: Convert to fraction form
832,318.23/1,148,631.74 = 469,754.64/x - Step 3: Cross multiply
832,318.23x = 1,148,631.74 × 469,754.64 - Step 4: Simplify right side
832,318.23x = 539,575,088,929.08 - Step 5: Solve for x
x = 539,575,088,929.08/832,318.23 - Step 6: Final answer
x = 648,279.79
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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.