Finding the Fourth Proportional to 523,316.21, 722,288.90 and 319,323.42
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Solution
The fourth proportional to 523,316.21, 722,288.90 and 319,323.42 is: 440,734.99
Step by Step Solution
- Step 1: Write the proportion equation
523,316.21 : 722,288.90 = 319,323.42 : x - Step 2: Convert to fraction form
523,316.21/722,288.90 = 319,323.42/x - Step 3: Cross multiply
523,316.21x = 722,288.90 × 319,323.42 - Step 4: Simplify right side
523,316.21x = 230,643,762,574.35 - Step 5: Solve for x
x = 230,643,762,574.35/523,316.21 - Step 6: Final answer
x = 440,734.99
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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.