Finding the Fourth Proportional to 742,551.29, 1,024,545.14 and 420,261.39
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Solution
The fourth proportional to 742,551.29, 1,024,545.14 and 420,261.39 is: 579,861.32
Step by Step Solution
- Step 1: Write the proportion equation
742,551.29 : 1,024,545.14 = 420,261.39 : x - Step 2: Convert to fraction form
742,551.29/1,024,545.14 = 420,261.39/x - Step 3: Cross multiply
742,551.29x = 1,024,545.14 × 420,261.39 - Step 4: Simplify right side
742,551.29x = 430,576,764,654.15 - Step 5: Solve for x
x = 430,576,764,654.15/742,551.29 - Step 6: Final answer
x = 579,861.32
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1.5x scale
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.