Finding the Fourth Proportional to 513,486.25, 770,004.65 and 243,691.70
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Solution
The fourth proportional to 513,486.25, 770,004.65 and 243,691.70 is: 365,430.90
Step by Step Solution
- Step 1: Write the proportion equation
513,486.25 : 770,004.65 = 243,691.70 : x - Step 2: Convert to fraction form
513,486.25/770,004.65 = 243,691.70/x - Step 3: Cross multiply
513,486.25x = 770,004.65 × 243,691.70 - Step 4: Simplify right side
513,486.25x = 187,643,742,872.96 - Step 5: Solve for x
x = 187,643,742,872.96/513,486.25 - Step 6: Final answer
x = 365,430.90
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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.