Finding the Fourth Proportional to 1,497,189.84, 2,245,117.68 and 431,978.76
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Solution
The fourth proportional to 1,497,189.84, 2,245,117.68 and 431,978.76 is: 647,775.67
Step by Step Solution
- Step 1: Write the proportion equation
1,497,189.84 : 2,245,117.68 = 431,978.76 : x - Step 2: Convert to fraction form
1,497,189.84/2,245,117.68 = 431,978.76/x - Step 3: Cross multiply
1,497,189.84x = 2,245,117.68 × 431,978.76 - Step 4: Simplify right side
1,497,189.84x = 969,843,151,460.48 - Step 5: Solve for x
x = 969,843,151,460.48/1,497,189.84 - Step 6: Final answer
x = 647,775.67
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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.