Finding the Fourth Proportional to 625,126.99, 862,671.79 and 338,652.67
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Solution
The fourth proportional to 625,126.99, 862,671.79 and 338,652.67 is: 467,338.81
Step by Step Solution
- Step 1: Write the proportion equation
625,126.99 : 862,671.79 = 338,652.67 : x - Step 2: Convert to fraction form
625,126.99/862,671.79 = 338,652.67/x - Step 3: Cross multiply
625,126.99x = 862,671.79 × 338,652.67 - Step 4: Simplify right side
625,126.99x = 292,146,105,017.18 - Step 5: Solve for x
x = 292,146,105,017.18/625,126.99 - Step 6: Final answer
x = 467,338.81
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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.