Finding the Fourth Proportional to 513,470.40, 769,564.08 and 354,431.76
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Solution
The fourth proportional to 513,470.40, 769,564.08 and 354,431.76 is: 531,204.82
Step by Step Solution
- Step 1: Write the proportion equation
513,470.40 : 769,564.08 = 354,431.76 : x - Step 2: Convert to fraction form
513,470.40/769,564.08 = 354,431.76/x - Step 3: Cross multiply
513,470.40x = 769,564.08 × 354,431.76 - Step 4: Simplify right side
513,470.40x = 272,757,951,307.18 - Step 5: Solve for x
x = 272,757,951,307.18/513,470.40 - Step 6: Final answer
x = 531,204.82
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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.