Finding the Fourth Proportional to 519,234.28, 778,060.86 and 385,487.08
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Solution
The fourth proportional to 519,234.28, 778,060.86 and 385,487.08 is: 577,643.70
Step by Step Solution
- Step 1: Write the proportion equation
519,234.28 : 778,060.86 = 385,487.08 : x - Step 2: Convert to fraction form
519,234.28/778,060.86 = 385,487.08/x - Step 3: Cross multiply
519,234.28x = 778,060.86 × 385,487.08 - Step 4: Simplify right side
519,234.28x = 299,932,408,983.69 - Step 5: Solve for x
x = 299,932,408,983.69/519,234.28 - Step 6: Final answer
x = 577,643.70
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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.