Finding the Fourth Proportional to 1,260,795.65, 1,739,889.79 and 716,931.41
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Solution
The fourth proportional to 1,260,795.65, 1,739,889.79 and 716,931.41 is: 989,360.67
Step by Step Solution
- Step 1: Write the proportion equation
1,260,795.65 : 1,739,889.79 = 716,931.41 : x - Step 2: Convert to fraction form
1,260,795.65/1,739,889.79 = 716,931.41/x - Step 3: Cross multiply
1,260,795.65x = 1,739,889.79 × 716,931.41 - Step 4: Simplify right side
1,260,795.65x = 1,247,381,629,897.53 - Step 5: Solve for x
x = 1,247,381,629,897.53/1,260,795.65 - Step 6: Final answer
x = 989,360.67
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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.