Finding the Fourth Proportional to 767,788.70, 1,152,201.45 and 430,828.70
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Solution
The fourth proportional to 767,788.70, 1,152,201.45 and 430,828.70 is: 646,533.94
Step by Step Solution
- Step 1: Write the proportion equation
767,788.70 : 1,152,201.45 = 430,828.70 : x - Step 2: Convert to fraction form
767,788.70/1,152,201.45 = 430,828.70/x - Step 3: Cross multiply
767,788.70x = 1,152,201.45 × 430,828.70 - Step 4: Simplify right side
767,788.70x = 496,401,452,841.62 - Step 5: Solve for x
x = 496,401,452,841.62/767,788.70 - Step 6: Final answer
x = 646,533.94
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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.