Finding the Fourth Proportional to 779,908.60, 1,170,251.70 and 443,207.80
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Solution
The fourth proportional to 779,908.60, 1,170,251.70 and 443,207.80 is: 665,032.65
Step by Step Solution
- Step 1: Write the proportion equation
779,908.60 : 1,170,251.70 = 443,207.80 : x - Step 2: Convert to fraction form
779,908.60/1,170,251.70 = 443,207.80/x - Step 3: Cross multiply
779,908.60x = 1,170,251.70 × 443,207.80 - Step 4: Simplify right side
779,908.60x = 518,664,681,403.26 - Step 5: Solve for x
x = 518,664,681,403.26/779,908.60 - Step 6: Final answer
x = 665,032.65
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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.