Finding the Fourth Proportional to 484,638.93, 668,864.52 and 277,987.95
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Solution
The fourth proportional to 484,638.93, 668,864.52 and 277,987.95 is: 383,659.39
Step by Step Solution
- Step 1: Write the proportion equation
484,638.93 : 668,864.52 = 277,987.95 : x - Step 2: Convert to fraction form
484,638.93/668,864.52 = 277,987.95/x - Step 3: Cross multiply
484,638.93x = 668,864.52 × 277,987.95 - Step 4: Simplify right side
484,638.93x = 185,936,276,742.53 - Step 5: Solve for x
x = 185,936,276,742.53/484,638.93 - Step 6: Final answer
x = 383,659.39
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1.5x scale
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.