Finding the Fourth Proportional to 752,769.21, 1,129,155.42 and 529,130.36
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Solution
The fourth proportional to 752,769.21, 1,129,155.42 and 529,130.36 is: 793,696.66
Step by Step Solution
- Step 1: Write the proportion equation
752,769.21 : 1,129,155.42 = 529,130.36 : x - Step 2: Convert to fraction form
752,769.21/1,129,155.42 = 529,130.36/x - Step 3: Cross multiply
752,769.21x = 1,129,155.42 × 529,130.36 - Step 4: Simplify right side
752,769.21x = 597,470,408,234.77 - Step 5: Solve for x
x = 597,470,408,234.77/752,769.21 - Step 6: Final answer
x = 793,696.66
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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.