Finding the Fourth Proportional to 928,467.78, 1,392,701.67 and 612,850.88
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Solution
The fourth proportional to 928,467.78, 1,392,701.67 and 612,850.88 is: 919,276.31
Step by Step Solution
- Step 1: Write the proportion equation
928,467.78 : 1,392,701.67 = 612,850.88 : x - Step 2: Convert to fraction form
928,467.78/1,392,701.67 = 612,850.88/x - Step 3: Cross multiply
928,467.78x = 1,392,701.67 × 612,850.88 - Step 4: Simplify right side
928,467.78x = 853,518,437,073.46 - Step 5: Solve for x
x = 853,518,437,073.46/928,467.78 - Step 6: Final answer
x = 919,276.31
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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.