Finding the Fourth Proportional to 519,909.20, 778,135.80 and 377,349.20
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Solution
The fourth proportional to 519,909.20, 778,135.80 and 377,349.20 is: 564,769.62
Step by Step Solution
- Step 1: Write the proportion equation
519,909.20 : 778,135.80 = 377,349.20 : x - Step 2: Convert to fraction form
519,909.20/778,135.80 = 377,349.20/x - Step 3: Cross multiply
519,909.20x = 778,135.80 × 377,349.20 - Step 4: Simplify right side
519,909.20x = 293,628,921,621.36 - Step 5: Solve for x
x = 293,628,921,621.36/519,909.20 - Step 6: Final answer
x = 564,769.62
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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.