Finding the Fourth Proportional to 487,501.26, 672,731.80 and 283,558.02
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Solution
The fourth proportional to 487,501.26, 672,731.80 and 283,558.02 is: 391,298.47
Step by Step Solution
- Step 1: Write the proportion equation
487,501.26 : 672,731.80 = 283,558.02 : x - Step 2: Convert to fraction form
487,501.26/672,731.80 = 283,558.02/x - Step 3: Cross multiply
487,501.26x = 672,731.80 × 283,558.02 - Step 4: Simplify right side
487,501.26x = 190,758,497,199.04 - Step 5: Solve for x
x = 190,758,497,199.04/487,501.26 - Step 6: Final answer
x = 391,298.47
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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.