Finding the Fourth Proportional to 1,177,419.75, 1,766,393.01 and 429,465.75
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Solution
The fourth proportional to 1,177,419.75, 1,766,393.01 and 429,465.75 is: 644,294.70
Step by Step Solution
- Step 1: Write the proportion equation
1,177,419.75 : 1,766,393.01 = 429,465.75 : x - Step 2: Convert to fraction form
1,177,419.75/1,766,393.01 = 429,465.75/x - Step 3: Cross multiply
1,177,419.75x = 1,766,393.01 × 429,465.75 - Step 4: Simplify right side
1,177,419.75x = 758,605,298,834.41 - Step 5: Solve for x
x = 758,605,298,834.41/1,177,419.75 - Step 6: Final answer
x = 644,294.70
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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.