Finding the Fourth Proportional to 493,508.70, 739,618.09 and 357,190.80
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Solution
The fourth proportional to 493,508.70, 739,618.09 and 357,190.80 is: 535,319.39
Step by Step Solution
- Step 1: Write the proportion equation
493,508.70 : 739,618.09 = 357,190.80 : x - Step 2: Convert to fraction form
493,508.70/739,618.09 = 357,190.80/x - Step 3: Cross multiply
493,508.70x = 739,618.09 × 357,190.80 - Step 4: Simplify right side
493,508.70x = 264,184,776,715.29 - Step 5: Solve for x
x = 264,184,776,715.29/493,508.70 - Step 6: Final answer
x = 535,319.39
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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.