Finding the Fourth Proportional to 832,471.81, 1,148,813.97 and 450,498.49
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Solution
The fourth proportional to 832,471.81, 1,148,813.97 and 450,498.49 is: 621,689.47
Step by Step Solution
- Step 1: Write the proportion equation
832,471.81 : 1,148,813.97 = 450,498.49 : x - Step 2: Convert to fraction form
832,471.81/1,148,813.97 = 450,498.49/x - Step 3: Cross multiply
832,471.81x = 1,148,813.97 × 450,498.49 - Step 4: Simplify right side
832,471.81x = 517,538,958,775.91 - Step 5: Solve for x
x = 517,538,958,775.91/832,471.81 - Step 6: Final answer
x = 621,689.47
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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.