Finding the Fourth Proportional to 919,421.87, 1,268,976.92 and 575,417.70
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Solution
The fourth proportional to 919,421.87, 1,268,976.92 and 575,417.70 is: 794,185.79
Step by Step Solution
- Step 1: Write the proportion equation
919,421.87 : 1,268,976.92 = 575,417.70 : x - Step 2: Convert to fraction form
919,421.87/1,268,976.92 = 575,417.70/x - Step 3: Cross multiply
919,421.87x = 1,268,976.92 × 575,417.70 - Step 4: Simplify right side
919,421.87x = 730,191,777,782.40 - Step 5: Solve for x
x = 730,191,777,782.40/919,421.87 - Step 6: Final answer
x = 794,185.79
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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.