Finding the Fourth Proportional to 668,752.80, 922,878.78 and 382,279.08
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Solution
The fourth proportional to 668,752.80, 922,878.78 and 382,279.08 is: 527,545.08
Step by Step Solution
- Step 1: Write the proportion equation
668,752.80 : 922,878.78 = 382,279.08 : x - Step 2: Convert to fraction form
668,752.80/922,878.78 = 382,279.08/x - Step 3: Cross multiply
668,752.80x = 922,878.78 × 382,279.08 - Step 4: Simplify right side
668,752.80x = 352,797,250,969.92 - Step 5: Solve for x
x = 352,797,250,969.92/668,752.80 - Step 6: Final answer
x = 527,545.08
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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.