Finding the Fourth Proportional to 1,189,810.76, 1,641,330.66 and 759,638.92
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Solution
The fourth proportional to 1,189,810.76, 1,641,330.66 and 759,638.92 is: 1,047,913.41
Step by Step Solution
- Step 1: Write the proportion equation
1,189,810.76 : 1,641,330.66 = 759,638.92 : x - Step 2: Convert to fraction form
1,189,810.76/1,641,330.66 = 759,638.92/x - Step 3: Cross multiply
1,189,810.76x = 1,641,330.66 × 759,638.92 - Step 4: Simplify right side
1,189,810.76x = 1,246,818,649,925.29 - Step 5: Solve for x
x = 1,246,818,649,925.29/1,189,810.76 - Step 6: Final answer
x = 1,047,913.41
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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.