Finding the Fourth Proportional to 1,121,422.68, 1,680,412.02 and 761,125.56
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Solution
The fourth proportional to 1,121,422.68, 1,680,412.02 and 761,125.56 is: 1,140,519.59
Step by Step Solution
- Step 1: Write the proportion equation
1,121,422.68 : 1,680,412.02 = 761,125.56 : x - Step 2: Convert to fraction form
1,121,422.68/1,680,412.02 = 761,125.56/x - Step 3: Cross multiply
1,121,422.68x = 1,680,412.02 × 761,125.56 - Step 4: Simplify right side
1,121,422.68x = 1,279,004,539,753.23 - Step 5: Solve for x
x = 1,279,004,539,753.23/1,121,422.68 - Step 6: Final answer
x = 1,140,519.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.