Finding the Fourth Proportional to 905,040.92, 1,248,916.10 and 542,664.74
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Solution
The fourth proportional to 905,040.92, 1,248,916.10 and 542,664.74 is: 748,853.14
Step by Step Solution
- Step 1: Write the proportion equation
905,040.92 : 1,248,916.10 = 542,664.74 : x - Step 2: Convert to fraction form
905,040.92/1,248,916.10 = 542,664.74/x - Step 3: Cross multiply
905,040.92x = 1,248,916.10 × 542,664.74 - Step 4: Simplify right side
905,040.92x = 677,742,730,688.31 - Step 5: Solve for x
x = 677,742,730,688.31/905,040.92 - Step 6: Final answer
x = 748,853.14
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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.