Finding the Fourth Proportional to 1,393,291.80, 2,089,937.70 and 684,703.80
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Solution
The fourth proportional to 1,393,291.80, 2,089,937.70 and 684,703.80 is: 1,027,055.70
Step by Step Solution
- Step 1: Write the proportion equation
1,393,291.80 : 2,089,937.70 = 684,703.80 : x - Step 2: Convert to fraction form
1,393,291.80/2,089,937.70 = 684,703.80/x - Step 3: Cross multiply
1,393,291.80x = 2,089,937.70 × 684,703.80 - Step 4: Simplify right side
1,393,291.80x = 1,430,988,284,953.26 - Step 5: Solve for x
x = 1,430,988,284,953.26/1,393,291.80 - Step 6: Final answer
x = 1,027,055.70
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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.