Finding the Fourth Proportional to 434,558.10, 651,837.15 and 314,807.70
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Solution
The fourth proportional to 434,558.10, 651,837.15 and 314,807.70 is: 472,211.55
Step by Step Solution
- Step 1: Write the proportion equation
434,558.10 : 651,837.15 = 314,807.70 : x - Step 2: Convert to fraction form
434,558.10/651,837.15 = 314,807.70/x - Step 3: Cross multiply
434,558.10x = 651,837.15 × 314,807.70 - Step 4: Simplify right side
434,558.10x = 205,203,353,966.06 - Step 5: Solve for x
x = 205,203,353,966.06/434,558.10 - Step 6: Final answer
x = 472,211.55
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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.