Finding the Fourth Proportional to 434,323.70, 651,485.55 and 372,115.70
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Solution
The fourth proportional to 434,323.70, 651,485.55 and 372,115.70 is: 558,173.55
Step by Step Solution
- Step 1: Write the proportion equation
434,323.70 : 651,485.55 = 372,115.70 : x - Step 2: Convert to fraction form
434,323.70/651,485.55 = 372,115.70/x - Step 3: Cross multiply
434,323.70x = 651,485.55 × 372,115.70 - Step 4: Simplify right side
434,323.70x = 242,428,001,478.14 - Step 5: Solve for x
x = 242,428,001,478.14/434,323.70 - Step 6: Final answer
x = 558,173.55
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1.5x scale
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.