Finding the Fourth Proportional to 1,351,555.40, 1,865,355.84 and 770,779.76
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Solution
The fourth proportional to 1,351,555.40, 1,865,355.84 and 770,779.76 is: 1,063,795.48
Step by Step Solution
- Step 1: Write the proportion equation
1,351,555.40 : 1,865,355.84 = 770,779.76 : x - Step 2: Convert to fraction form
1,351,555.40/1,865,355.84 = 770,779.76/x - Step 3: Cross multiply
1,351,555.40x = 1,865,355.84 × 770,779.76 - Step 4: Simplify right side
1,351,555.40x = 1,437,778,526,669.80 - Step 5: Solve for x
x = 1,437,778,526,669.80/1,351,555.40 - Step 6: Final answer
x = 1,063,795.48
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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.