Finding the Fourth Proportional to 484,319.90, 668,285.95 and 280,330.91
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Solution
The fourth proportional to 484,319.90, 668,285.95 and 280,330.91 is: 386,812.95
Step by Step Solution
- Step 1: Write the proportion equation
484,319.90 : 668,285.95 = 280,330.91 : x - Step 2: Convert to fraction form
484,319.90/668,285.95 = 280,330.91/x - Step 3: Cross multiply
484,319.90x = 668,285.95 × 280,330.91 - Step 4: Simplify right side
484,319.90x = 187,341,207,102.06 - Step 5: Solve for x
x = 187,341,207,102.06/484,319.90 - Step 6: Final answer
x = 386,812.95
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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.