Finding the Fourth Proportional to 489,408.68, 734,025.54 and 311,386.88
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Solution
The fourth proportional to 489,408.68, 734,025.54 and 311,386.88 is: 467,024.66
Step by Step Solution
- Step 1: Write the proportion equation
489,408.68 : 734,025.54 = 311,386.88 : x - Step 2: Convert to fraction form
489,408.68/734,025.54 = 311,386.88/x - Step 3: Cross multiply
489,408.68x = 734,025.54 × 311,386.88 - Step 4: Simplify right side
489,408.68x = 228,565,925,743.68 - Step 5: Solve for x
x = 228,565,925,743.68/489,408.68 - Step 6: Final answer
x = 467,024.66
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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.