Finding the Fourth Proportional to 630,473.88, 870,052.68 and 343,993.80
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Solution
The fourth proportional to 630,473.88, 870,052.68 and 343,993.80 is: 474,710.75
Step by Step Solution
- Step 1: Write the proportion equation
630,473.88 : 870,052.68 = 343,993.80 : x - Step 2: Convert to fraction form
630,473.88/870,052.68 = 343,993.80/x - Step 3: Cross multiply
630,473.88x = 870,052.68 × 343,993.80 - Step 4: Simplify right side
630,473.88x = 299,292,727,593.38 - Step 5: Solve for x
x = 299,292,727,593.38/630,473.88 - Step 6: Final answer
x = 474,710.75
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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.