Finding the Fourth Proportional to 1,279,407.68, 1,919,775.70 and 521,804.96
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Solution
The fourth proportional to 1,279,407.68, 1,919,775.70 and 521,804.96 is: 782,978.33
Step by Step Solution
- Step 1: Write the proportion equation
1,279,407.68 : 1,919,775.70 = 521,804.96 : x - Step 2: Convert to fraction form
1,279,407.68/1,919,775.70 = 521,804.96/x - Step 3: Cross multiply
1,279,407.68x = 1,919,775.70 × 521,804.96 - Step 4: Simplify right side
1,279,407.68x = 1,001,748,482,347.47 - Step 5: Solve for x
x = 1,001,748,482,347.47/1,279,407.68 - Step 6: Final answer
x = 782,978.33
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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.