Finding the Fourth Proportional to 412,963.74, 619,314.36 and 280,693.98
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Solution
The fourth proportional to 412,963.74, 619,314.36 and 280,693.98 is: 420,951.76
Step by Step Solution
- Step 1: Write the proportion equation
412,963.74 : 619,314.36 = 280,693.98 : x - Step 2: Convert to fraction form
412,963.74/619,314.36 = 280,693.98/x - Step 3: Cross multiply
412,963.74x = 619,314.36 × 280,693.98 - Step 4: Simplify right side
412,963.74x = 173,837,812,579.55 - Step 5: Solve for x
x = 173,837,812,579.55/412,963.74 - Step 6: Final answer
x = 420,951.76
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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.