Finding the Fourth Proportional to 919,425.24, 1,268,981.58 and 575,421.08
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Solution
The fourth proportional to 919,425.24, 1,268,981.58 and 575,421.08 is: 794,190.45
Step by Step Solution
- Step 1: Write the proportion equation
919,425.24 : 1,268,981.58 = 575,421.08 : x - Step 2: Convert to fraction form
919,425.24/1,268,981.58 = 575,421.08/x - Step 3: Cross multiply
919,425.24x = 1,268,981.58 × 575,421.08 - Step 4: Simplify right side
919,425.24x = 730,198,744,918.80 - Step 5: Solve for x
x = 730,198,744,918.80/919,425.24 - Step 6: Final answer
x = 794,190.45
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1.5x scale
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.