Finding the Fourth Proportional to 1,124,371.68, 1,683,854.64 and 643,140.96
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Solution
The fourth proportional to 1,124,371.68, 1,683,854.64 and 643,140.96 is: 963,165.39
Step by Step Solution
- Step 1: Write the proportion equation
1,124,371.68 : 1,683,854.64 = 643,140.96 : x - Step 2: Convert to fraction form
1,124,371.68/1,683,854.64 = 643,140.96/x - Step 3: Cross multiply
1,124,371.68x = 1,683,854.64 × 643,140.96 - Step 4: Simplify right side
1,124,371.68x = 1,082,955,889,670.05 - Step 5: Solve for x
x = 1,082,955,889,670.05/1,124,371.68 - Step 6: Final answer
x = 963,165.39
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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.