Finding the Fourth Proportional to 1,072,079.55, 1,479,547.42 and 708,873.53
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Solution
The fourth proportional to 1,072,079.55, 1,479,547.42 and 708,873.53 is: 978,296.80
Step by Step Solution
- Step 1: Write the proportion equation
1,072,079.55 : 1,479,547.42 = 708,873.53 : x - Step 2: Convert to fraction form
1,072,079.55/1,479,547.42 = 708,873.53/x - Step 3: Cross multiply
1,072,079.55x = 1,479,547.42 × 708,873.53 - Step 4: Simplify right side
1,072,079.55x = 1,048,811,993,247.87 - Step 5: Solve for x
x = 1,048,811,993,247.87/1,072,079.55 - Step 6: Final answer
x = 978,296.80
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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.