Finding the Fourth Proportional to 470,670.12, 649,534.68 and 289,484.46
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Solution
The fourth proportional to 470,670.12, 649,534.68 and 289,484.46 is: 399,494.65
Step by Step Solution
- Step 1: Write the proportion equation
470,670.12 : 649,534.68 = 289,484.46 : x - Step 2: Convert to fraction form
470,670.12/649,534.68 = 289,484.46/x - Step 3: Cross multiply
470,670.12x = 649,534.68 × 289,484.46 - Step 4: Simplify right side
470,670.12x = 188,030,196,091.07 - Step 5: Solve for x
x = 188,030,196,091.07/470,670.12 - Step 6: Final answer
x = 399,494.65
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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.