Finding the Fourth Proportional to 1,544,488.29, 2,129,031.09 and 1,084,311.90
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Solution
The fourth proportional to 1,544,488.29, 2,129,031.09 and 1,084,311.90 is: 1,494,691.65
Step by Step Solution
- Step 1: Write the proportion equation
1,544,488.29 : 2,129,031.09 = 1,084,311.90 : x - Step 2: Convert to fraction form
1,544,488.29/2,129,031.09 = 1,084,311.90/x - Step 3: Cross multiply
1,544,488.29x = 2,129,031.09 × 1,084,311.90 - Step 4: Simplify right side
1,544,488.29x = 2,308,533,746,356.97 - Step 5: Solve for x
x = 2,308,533,746,356.97/1,544,488.29 - Step 6: Final answer
x = 1,494,691.65
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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.