Finding the Fourth Proportional to 612,655.79, 919,108.24 and 213,327.70
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Solution
The fourth proportional to 612,655.79, 919,108.24 and 213,327.70 is: 320,034.92
Step by Step Solution
- Step 1: Write the proportion equation
612,655.79 : 919,108.24 = 213,327.70 : x - Step 2: Convert to fraction form
612,655.79/919,108.24 = 213,327.70/x - Step 3: Cross multiply
612,655.79x = 919,108.24 × 213,327.70 - Step 4: Simplify right side
612,655.79x = 196,071,246,890.25 - Step 5: Solve for x
x = 196,071,246,890.25/612,655.79 - Step 6: Final answer
x = 320,034.92
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1.5x scale
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.