Finding the Fourth Proportional to 778,752.64, 1,168,138.24 and 305,660.80
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Solution
The fourth proportional to 778,752.64, 1,168,138.24 and 305,660.80 is: 458,494.84
Step by Step Solution
- Step 1: Write the proportion equation
778,752.64 : 1,168,138.24 = 305,660.80 : x - Step 2: Convert to fraction form
778,752.64/1,168,138.24 = 305,660.80/x - Step 3: Cross multiply
778,752.64x = 1,168,138.24 × 305,660.80 - Step 4: Simplify right side
778,752.64x = 357,054,068,948.99 - Step 5: Solve for x
x = 357,054,068,948.99/778,752.64 - Step 6: Final answer
x = 458,494.84
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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.