Finding the Fourth Proportional to 1,215,560.65, 1,823,656.20 and 646,473.79
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Solution
The fourth proportional to 1,215,560.65, 1,823,656.20 and 646,473.79 is: 969,878.33
Step by Step Solution
- Step 1: Write the proportion equation
1,215,560.65 : 1,823,656.20 = 646,473.79 : x - Step 2: Convert to fraction form
1,215,560.65/1,823,656.20 = 646,473.79/x - Step 3: Cross multiply
1,215,560.65x = 1,823,656.20 × 646,473.79 - Step 4: Simplify right side
1,215,560.65x = 1,178,945,935,271.00 - Step 5: Solve for x
x = 1,178,945,935,271.00/1,215,560.65 - Step 6: Final answer
x = 969,878.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.