Finding the Fourth Proportional to 412,988.42, 570,124.25 and 276,972.62
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Solution
The fourth proportional to 412,988.42, 570,124.25 and 276,972.62 is: 382,356.50
Step by Step Solution
- Step 1: Write the proportion equation
412,988.42 : 570,124.25 = 276,972.62 : x - Step 2: Convert to fraction form
412,988.42/570,124.25 = 276,972.62/x - Step 3: Cross multiply
412,988.42x = 570,124.25 × 276,972.62 - Step 4: Simplify right side
412,988.42x = 157,908,803,012.55 - Step 5: Solve for x
x = 157,908,803,012.55/412,988.42 - Step 6: Final answer
x = 382,356.50
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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.