Finding the Fourth Proportional to 493,330.21, 680,746.49 and 278,428.77
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Solution
The fourth proportional to 493,330.21, 680,746.49 and 278,428.77 is: 384,203.94
Step by Step Solution
- Step 1: Write the proportion equation
493,330.21 : 680,746.49 = 278,428.77 : x - Step 2: Convert to fraction form
493,330.21/680,746.49 = 278,428.77/x - Step 3: Cross multiply
493,330.21x = 680,746.49 × 278,428.77 - Step 4: Simplify right side
493,330.21x = 189,539,408,202.24 - Step 5: Solve for x
x = 189,539,408,202.24/493,330.21 - Step 6: Final answer
x = 384,203.94
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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.