Finding the Fourth Proportional to 497,557.64, 686,629.76 and 282,697.99
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Solution
The fourth proportional to 497,557.64, 686,629.76 and 282,697.99 is: 390,123.34
Step by Step Solution
- Step 1: Write the proportion equation
497,557.64 : 686,629.76 = 282,697.99 : x - Step 2: Convert to fraction form
497,557.64/686,629.76 = 282,697.99/x - Step 3: Cross multiply
497,557.64x = 686,629.76 × 282,697.99 - Step 4: Simplify right side
497,557.64x = 194,108,849,896.12 - Step 5: Solve for x
x = 194,108,849,896.12/497,557.64 - Step 6: Final answer
x = 390,123.34
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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.