Finding the Fourth Proportional to 531,925.70, 734,056.64 and 290,208.30
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Solution
The fourth proportional to 531,925.70, 734,056.64 and 290,208.30 is: 400,486.99
Step by Step Solution
- Step 1: Write the proportion equation
531,925.70 : 734,056.64 = 290,208.30 : x - Step 2: Convert to fraction form
531,925.70/734,056.64 = 290,208.30/x - Step 3: Cross multiply
531,925.70x = 734,056.64 × 290,208.30 - Step 4: Simplify right side
531,925.70x = 213,029,327,000.11 - Step 5: Solve for x
x = 213,029,327,000.11/531,925.70 - Step 6: Final answer
x = 400,486.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.