Finding the Fourth Proportional to 633,349.77, 873,990.21 and 346,863.70
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Solution
The fourth proportional to 633,349.77, 873,990.21 and 346,863.70 is: 478,654.12
Step by Step Solution
- Step 1: Write the proportion equation
633,349.77 : 873,990.21 = 346,863.70 : x - Step 2: Convert to fraction form
633,349.77/873,990.21 = 346,863.70/x - Step 3: Cross multiply
633,349.77x = 873,990.21 × 346,863.70 - Step 4: Simplify right side
633,349.77x = 303,155,478,004.38 - Step 5: Solve for x
x = 303,155,478,004.38/633,349.77 - Step 6: Final answer
x = 478,654.12
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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.