Finding the Fourth Proportional to 642,762.68, 887,055.18 and 356,294.84
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Solution
The fourth proportional to 642,762.68, 887,055.18 and 356,294.84 is: 491,710.54
Step by Step Solution
- Step 1: Write the proportion equation
642,762.68 : 887,055.18 = 356,294.84 : x - Step 2: Convert to fraction form
642,762.68/887,055.18 = 356,294.84/x - Step 3: Cross multiply
642,762.68x = 887,055.18 × 356,294.84 - Step 4: Simplify right side
642,762.68x = 316,053,183,429.27 - Step 5: Solve for x
x = 316,053,183,429.27/642,762.68 - Step 6: Final answer
x = 491,710.54
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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.