Finding the Fourth Proportional to 633,542.12, 874,289.18 and 347,055.96
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Solution
The fourth proportional to 633,542.12, 874,289.18 and 347,055.96 is: 478,937.80
Step by Step Solution
- Step 1: Write the proportion equation
633,542.12 : 874,289.18 = 347,055.96 : x - Step 2: Convert to fraction form
633,542.12/874,289.18 = 347,055.96/x - Step 3: Cross multiply
633,542.12x = 874,289.18 × 347,055.96 - Step 4: Simplify right side
633,542.12x = 303,427,270,682.51 - Step 5: Solve for x
x = 303,427,270,682.51/633,542.12 - Step 6: Final answer
x = 478,937.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.