Finding the Fourth Proportional to 752,491.89, 1,128,595.94 and 212,743.88
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Solution
The fourth proportional to 752,491.89, 1,128,595.94 and 212,743.88 is: 319,075.71
Step by Step Solution
- Step 1: Write the proportion equation
752,491.89 : 1,128,595.94 = 212,743.88 : x - Step 2: Convert to fraction form
752,491.89/1,128,595.94 = 212,743.88/x - Step 3: Cross multiply
752,491.89x = 1,128,595.94 × 212,743.88 - Step 4: Simplify right side
752,491.89x = 240,101,883,899.53 - Step 5: Solve for x
x = 240,101,883,899.53/752,491.89 - Step 6: Final answer
x = 319,075.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.