Finding the Fourth Proportional to 1,587,030.26, 2,190,101.24 and 861,878.16
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Solution
The fourth proportional to 1,587,030.26, 2,190,101.24 and 861,878.16 is: 1,189,391.58
Step by Step Solution
- Step 1: Write the proportion equation
1,587,030.26 : 2,190,101.24 = 861,878.16 : x - Step 2: Convert to fraction form
1,587,030.26/2,190,101.24 = 861,878.16/x - Step 3: Cross multiply
1,587,030.26x = 2,190,101.24 × 861,878.16 - Step 4: Simplify right side
1,587,030.26x = 1,887,600,422,635.53 - Step 5: Solve for x
x = 1,887,600,422,635.53/1,587,030.26 - Step 6: Final answer
x = 1,189,391.58
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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.