Finding the Fourth Proportional to 689,693.64, 1,034,541.04 and 329,779.81
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Solution
The fourth proportional to 689,693.64, 1,034,541.04 and 329,779.81 is: 494,669.99
Step by Step Solution
- Step 1: Write the proportion equation
689,693.64 : 1,034,541.04 = 329,779.81 : x - Step 2: Convert to fraction form
689,693.64/1,034,541.04 = 329,779.81/x - Step 3: Cross multiply
689,693.64x = 1,034,541.04 × 329,779.81 - Step 4: Simplify right side
689,693.64x = 341,170,741,948.67 - Step 5: Solve for x
x = 341,170,741,948.67/689,693.64 - Step 6: Final answer
x = 494,669.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.