Finding the Fourth Proportional to 931,125.20, 1,285,120.20 and 549,129.68
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Solution
The fourth proportional to 931,125.20, 1,285,120.20 and 549,129.68 is: 757,897.70
Step by Step Solution
- Step 1: Write the proportion equation
931,125.20 : 1,285,120.20 = 549,129.68 : x - Step 2: Convert to fraction form
931,125.20/1,285,120.20 = 549,129.68/x - Step 3: Cross multiply
931,125.20x = 1,285,120.20 × 549,129.68 - Step 4: Simplify right side
931,125.20x = 705,697,644,187.54 - Step 5: Solve for x
x = 705,697,644,187.54/931,125.20 - Step 6: Final answer
x = 757,897.70
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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.