Finding the Fourth Proportional to 817,235.15, 1,127,821.05 and 681,041.21
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Solution
The fourth proportional to 817,235.15, 1,127,821.05 and 681,041.21 is: 939,867.32
Step by Step Solution
- Step 1: Write the proportion equation
817,235.15 : 1,127,821.05 = 681,041.21 : x - Step 2: Convert to fraction form
817,235.15/1,127,821.05 = 681,041.21/x - Step 3: Cross multiply
817,235.15x = 1,127,821.05 × 681,041.21 - Step 4: Simplify right side
817,235.15x = 768,092,606,916.37 - Step 5: Solve for x
x = 768,092,606,916.37/817,235.15 - Step 6: Final answer
x = 939,867.32
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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.