Finding the Fourth Proportional to 1,249,912.68, 1,875,147.42 and 688,658.28
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Solution
The fourth proportional to 1,249,912.68, 1,875,147.42 and 688,658.28 is: 1,033,140.81
Step by Step Solution
- Step 1: Write the proportion equation
1,249,912.68 : 1,875,147.42 = 688,658.28 : x - Step 2: Convert to fraction form
1,249,912.68/1,875,147.42 = 688,658.28/x - Step 3: Cross multiply
1,249,912.68x = 1,875,147.42 × 688,658.28 - Step 4: Simplify right side
1,249,912.68x = 1,291,335,797,003.64 - Step 5: Solve for x
x = 1,291,335,797,003.64/1,249,912.68 - Step 6: Final answer
x = 1,033,140.81
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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.