Finding the Fourth Proportional to 917,515.20, 1,376,272.98 and 286,483.08
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Solution
The fourth proportional to 917,515.20, 1,376,272.98 and 286,483.08 is: 429,724.68
Step by Step Solution
- Step 1: Write the proportion equation
917,515.20 : 1,376,272.98 = 286,483.08 : x - Step 2: Convert to fraction form
917,515.20/1,376,272.98 = 286,483.08/x - Step 3: Cross multiply
917,515.20x = 1,376,272.98 × 286,483.08 - Step 4: Simplify right side
917,515.20x = 394,278,922,231.18 - Step 5: Solve for x
x = 394,278,922,231.18/917,515.20 - Step 6: Final answer
x = 429,724.68
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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.