Finding the Fourth Proportional to 1,556,434.17, 2,319,178.30 and 1,386,649.87
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Solution
The fourth proportional to 1,556,434.17, 2,319,178.30 and 1,386,649.87 is: 2,066,189.72
Step by Step Solution
- Step 1: Write the proportion equation
1,556,434.17 : 2,319,178.30 = 1,386,649.87 : x - Step 2: Convert to fraction form
1,556,434.17/2,319,178.30 = 1,386,649.87/x - Step 3: Cross multiply
1,556,434.17x = 2,319,178.30 × 1,386,649.87 - Step 4: Simplify right side
1,556,434.17x = 3,215,888,278,937.25 - Step 5: Solve for x
x = 3,215,888,278,937.25/1,556,434.17 - Step 6: Final answer
x = 2,066,189.72
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.