Finding the Fourth Proportional to 1,423,715.55, 1,965,644.42 and 1,270,490.23
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Solution
The fourth proportional to 1,423,715.55, 1,965,644.42 and 1,270,490.23 is: 1,754,094.79
Step by Step Solution
- Step 1: Write the proportion equation
1,423,715.55 : 1,965,644.42 = 1,270,490.23 : x - Step 2: Convert to fraction form
1,423,715.55/1,965,644.42 = 1,270,490.23/x - Step 3: Cross multiply
1,423,715.55x = 1,965,644.42 × 1,270,490.23 - Step 4: Simplify right side
1,423,715.55x = 2,497,332,031,264.02 - Step 5: Solve for x
x = 2,497,332,031,264.02/1,423,715.55 - Step 6: Final answer
x = 1,754,094.79
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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.