Finding the Fourth Proportional to 743,444.61, 1,115,209.35 and 210,923.79
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Solution
The fourth proportional to 743,444.61, 1,115,209.35 and 210,923.79 is: 316,397.72
Step by Step Solution
- Step 1: Write the proportion equation
743,444.61 : 1,115,209.35 = 210,923.79 : x - Step 2: Convert to fraction form
743,444.61/1,115,209.35 = 210,923.79/x - Step 3: Cross multiply
743,444.61x = 1,115,209.35 × 210,923.79 - Step 4: Simplify right side
743,444.61x = 235,224,182,745.44 - Step 5: Solve for x
x = 235,224,182,745.44/743,444.61 - Step 6: Final answer
x = 316,397.72
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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.