Finding the Fourth Proportional to 885,312.68, 1,221,735.36 and 482,913.32
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Solution
The fourth proportional to 885,312.68, 1,221,735.36 and 482,913.32 is: 666,422.49
Step by Step Solution
- Step 1: Write the proportion equation
885,312.68 : 1,221,735.36 = 482,913.32 : x - Step 2: Convert to fraction form
885,312.68/1,221,735.36 = 482,913.32/x - Step 3: Cross multiply
885,312.68x = 1,221,735.36 × 482,913.32 - Step 4: Simplify right side
885,312.68x = 589,992,278,859.00 - Step 5: Solve for x
x = 589,992,278,859.00/885,312.68 - Step 6: Final answer
x = 666,422.49
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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.