Finding the Fourth Proportional to 991,116.57, 1,367,624.82 and 583,128.68
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Solution
The fourth proportional to 991,116.57, 1,367,624.82 and 583,128.68 is: 804,649.29
Step by Step Solution
- Step 1: Write the proportion equation
991,116.57 : 1,367,624.82 = 583,128.68 : x - Step 2: Convert to fraction form
991,116.57/1,367,624.82 = 583,128.68/x - Step 3: Cross multiply
991,116.57x = 1,367,624.82 × 583,128.68 - Step 4: Simplify right side
991,116.57x = 797,501,249,183.71 - Step 5: Solve for x
x = 797,501,249,183.71/991,116.57 - Step 6: Final answer
x = 804,649.29
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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.