Finding the Fourth Proportional to 668,751.80, 922,877.40 and 382,278.08
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Solution
The fourth proportional to 668,751.80, 922,877.40 and 382,278.08 is: 527,543.70
Step by Step Solution
- Step 1: Write the proportion equation
668,751.80 : 922,877.40 = 382,278.08 : x - Step 2: Convert to fraction form
668,751.80/922,877.40 = 382,278.08/x - Step 3: Cross multiply
668,751.80x = 922,877.40 × 382,278.08 - Step 4: Simplify right side
668,751.80x = 352,795,800,547.39 - Step 5: Solve for x
x = 352,795,800,547.39/668,751.80 - Step 6: Final answer
x = 527,543.70
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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.