Finding the Fourth Proportional to 879,817.55, 1,214,173.80 and 497,836.13
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Solution
The fourth proportional to 879,817.55, 1,214,173.80 and 497,836.13 is: 687,028.33
Step by Step Solution
- Step 1: Write the proportion equation
879,817.55 : 1,214,173.80 = 497,836.13 : x - Step 2: Convert to fraction form
879,817.55/1,214,173.80 = 497,836.13/x - Step 3: Cross multiply
879,817.55x = 1,214,173.80 × 497,836.13 - Step 4: Simplify right side
879,817.55x = 604,459,579,668.53 - Step 5: Solve for x
x = 604,459,579,668.53/879,817.55 - Step 6: Final answer
x = 687,028.33
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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.