Finding the Fourth Proportional to 584,405.12, 806,478.72 and 316,133.12
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Solution
The fourth proportional to 584,405.12, 806,478.72 and 316,133.12 is: 436,263.52
Step by Step Solution
- Step 1: Write the proportion equation
584,405.12 : 806,478.72 = 316,133.12 : x - Step 2: Convert to fraction form
584,405.12/806,478.72 = 316,133.12/x - Step 3: Cross multiply
584,405.12x = 806,478.72 × 316,133.12 - Step 4: Simplify right side
584,405.12x = 254,954,633,967.21 - Step 5: Solve for x
x = 254,954,633,967.21/584,405.12 - Step 6: Final answer
x = 436,263.52
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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.