Finding the Fourth Proportional to 518,825.74, 778,723.80 and 319,534.96
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Solution
The fourth proportional to 518,825.74, 778,723.80 and 319,534.96 is: 479,601.26
Step by Step Solution
- Step 1: Write the proportion equation
518,825.74 : 778,723.80 = 319,534.96 : x - Step 2: Convert to fraction form
518,825.74/778,723.80 = 319,534.96/x - Step 3: Cross multiply
518,825.74x = 778,723.80 × 319,534.96 - Step 4: Simplify right side
518,825.74x = 248,829,478,284.05 - Step 5: Solve for x
x = 248,829,478,284.05/518,825.74 - Step 6: Final answer
x = 479,601.26
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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.