Finding the Fourth Proportional to 1,217,889.48, 1,680,277.68 and 708,172.68
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Solution
The fourth proportional to 1,217,889.48, 1,680,277.68 and 708,172.68 is: 977,040.01
Step by Step Solution
- Step 1: Write the proportion equation
1,217,889.48 : 1,680,277.68 = 708,172.68 : x - Step 2: Convert to fraction form
1,217,889.48/1,680,277.68 = 708,172.68/x - Step 3: Cross multiply
1,217,889.48x = 1,680,277.68 × 708,172.68 - Step 4: Simplify right side
1,217,889.48x = 1,189,926,747,789.78 - Step 5: Solve for x
x = 1,189,926,747,789.78/1,217,889.48 - Step 6: Final answer
x = 977,040.01
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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.