Finding the Fourth Proportional to 867,328.74, 1,195,766.91 and 711,710.06
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Solution
The fourth proportional to 867,328.74, 1,195,766.91 and 711,710.06 is: 981,218.88
Step by Step Solution
- Step 1: Write the proportion equation
867,328.74 : 1,195,766.91 = 711,710.06 : x - Step 2: Convert to fraction form
867,328.74/1,195,766.91 = 711,710.06/x - Step 3: Cross multiply
867,328.74x = 1,195,766.91 × 711,710.06 - Step 4: Simplify right side
867,328.74x = 851,039,333,283.28 - Step 5: Solve for x
x = 851,039,333,283.28/867,328.74 - Step 6: Final answer
x = 981,218.88
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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.