Finding the Fourth Proportional to 487,530.05, 672,809.87 and 266,782.19
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Solution
The fourth proportional to 487,530.05, 672,809.87 and 266,782.19 is: 368,169.49
Step by Step Solution
- Step 1: Write the proportion equation
487,530.05 : 672,809.87 = 266,782.19 : x - Step 2: Convert to fraction form
487,530.05/672,809.87 = 266,782.19/x - Step 3: Cross multiply
487,530.05x = 672,809.87 × 266,782.19 - Step 4: Simplify right side
487,530.05x = 179,493,692,921.20 - Step 5: Solve for x
x = 179,493,692,921.20/487,530.05 - Step 6: Final answer
x = 368,169.49
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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.