Finding the Fourth Proportional to 519,680.70, 778,864.95 and 252,866.70
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Solution
The fourth proportional to 519,680.70, 778,864.95 and 252,866.70 is: 378,980.80
Step by Step Solution
- Step 1: Write the proportion equation
519,680.70 : 778,864.95 = 252,866.70 : x - Step 2: Convert to fraction form
519,680.70/778,864.95 = 252,866.70/x - Step 3: Cross multiply
519,680.70x = 778,864.95 × 252,866.70 - Step 4: Simplify right side
519,680.70x = 196,949,009,652.17 - Step 5: Solve for x
x = 196,949,009,652.17/519,680.70 - Step 6: Final answer
x = 378,980.80
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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.