Finding the Fourth Proportional to 1,240,921.62, 1,712,658.28 and 757,765.49
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Solution
The fourth proportional to 1,240,921.62, 1,712,658.28 and 757,765.49 is: 1,045,830.23
Step by Step Solution
- Step 1: Write the proportion equation
1,240,921.62 : 1,712,658.28 = 757,765.49 : x - Step 2: Convert to fraction form
1,240,921.62/1,712,658.28 = 757,765.49/x - Step 3: Cross multiply
1,240,921.62x = 1,712,658.28 × 757,765.49 - Step 4: Simplify right side
1,240,921.62x = 1,297,793,340,746.76 - Step 5: Solve for x
x = 1,297,793,340,746.76/1,240,921.62 - Step 6: Final answer
x = 1,045,830.23
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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.