Finding the Fourth Proportional to 778,769.64, 1,168,220.07 and 246,278.88
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Solution
The fourth proportional to 778,769.64, 1,168,220.07 and 246,278.88 is: 369,439.07
Step by Step Solution
- Step 1: Write the proportion equation
778,769.64 : 1,168,220.07 = 246,278.88 : x - Step 2: Convert to fraction form
778,769.64/1,168,220.07 = 246,278.88/x - Step 3: Cross multiply
778,769.64x = 1,168,220.07 × 246,278.88 - Step 4: Simplify right side
778,769.64x = 287,707,930,433.12 - Step 5: Solve for x
x = 287,707,930,433.12/778,769.64 - Step 6: Final answer
x = 369,439.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.