Finding the Fourth Proportional to 1,262,420.68, 1,742,151.68 and 718,591.48
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Solution
The fourth proportional to 1,262,420.68, 1,742,151.68 and 718,591.48 is: 991,662.59
Step by Step Solution
- Step 1: Write the proportion equation
1,262,420.68 : 1,742,151.68 = 718,591.48 : x - Step 2: Convert to fraction form
1,262,420.68/1,742,151.68 = 718,591.48/x - Step 3: Cross multiply
1,262,420.68x = 1,742,151.68 × 718,591.48 - Step 4: Simplify right side
1,262,420.68x = 1,251,895,358,661.67 - Step 5: Solve for x
x = 1,251,895,358,661.67/1,262,420.68 - Step 6: Final answer
x = 991,662.59
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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.