Finding the Fourth Proportional to 519,551.28, 716,716.62 and 315,547.92
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Solution
The fourth proportional to 519,551.28, 716,716.62 and 315,547.92 is: 435,295.70
Step by Step Solution
- Step 1: Write the proportion equation
519,551.28 : 716,716.62 = 315,547.92 : x - Step 2: Convert to fraction form
519,551.28/716,716.62 = 315,547.92/x - Step 3: Cross multiply
519,551.28x = 716,716.62 × 315,547.92 - Step 4: Simplify right side
519,551.28x = 226,158,438,670.43 - Step 5: Solve for x
x = 226,158,438,670.43/519,551.28 - Step 6: Final answer
x = 435,295.70
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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.