Finding the Fourth Proportional to 1,549,328.29, 2,138,124.96 and 861,029.17
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Solution
The fourth proportional to 1,549,328.29, 2,138,124.96 and 861,029.17 is: 1,188,249.11
Step by Step Solution
- Step 1: Write the proportion equation
1,549,328.29 : 2,138,124.96 = 861,029.17 : x - Step 2: Convert to fraction form
1,549,328.29/2,138,124.96 = 861,029.17/x - Step 3: Cross multiply
1,549,328.29x = 2,138,124.96 × 861,029.17 - Step 4: Simplify right side
1,549,328.29x = 1,840,987,954,319.77 - Step 5: Solve for x
x = 1,840,987,954,319.77/1,549,328.29 - Step 6: Final answer
x = 1,188,249.11
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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.