Finding the Fourth Proportional to 494,785.80, 742,178.70 and 323,543.70
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Solution
The fourth proportional to 494,785.80, 742,178.70 and 323,543.70 is: 485,315.55
Step by Step Solution
- Step 1: Write the proportion equation
494,785.80 : 742,178.70 = 323,543.70 : x - Step 2: Convert to fraction form
494,785.80/742,178.70 = 323,543.70/x - Step 3: Cross multiply
494,785.80x = 742,178.70 × 323,543.70 - Step 4: Simplify right side
494,785.80x = 240,127,242,659.19 - Step 5: Solve for x
x = 240,127,242,659.19/494,785.80 - Step 6: Final answer
x = 485,315.55
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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.