Finding the Fourth Proportional to 1,587,347.74, 2,190,556.34 and 862,209.55
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Solution
The fourth proportional to 1,587,347.74, 2,190,556.34 and 862,209.55 is: 1,189,858.12
Step by Step Solution
- Step 1: Write the proportion equation
1,587,347.74 : 2,190,556.34 = 862,209.55 : x - Step 2: Convert to fraction form
1,587,347.74/2,190,556.34 = 862,209.55/x - Step 3: Cross multiply
1,587,347.74x = 2,190,556.34 × 862,209.55 - Step 4: Simplify right side
1,587,347.74x = 1,888,718,596,161.05 - Step 5: Solve for x
x = 1,888,718,596,161.05/1,587,347.74 - Step 6: Final answer
x = 1,189,858.12
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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.