Finding the Fourth Proportional to 753,576.72, 1,130,521.32 and 221,115.12
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Solution
The fourth proportional to 753,576.72, 1,130,521.32 and 221,115.12 is: 331,718.52
Step by Step Solution
- Step 1: Write the proportion equation
753,576.72 : 1,130,521.32 = 221,115.12 : x - Step 2: Convert to fraction form
753,576.72/1,130,521.32 = 221,115.12/x - Step 3: Cross multiply
753,576.72x = 1,130,521.32 × 221,115.12 - Step 4: Simplify right side
753,576.72x = 249,975,357,334.36 - Step 5: Solve for x
x = 249,975,357,334.36/753,576.72 - Step 6: Final answer
x = 331,718.52
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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.