Finding the Fourth Proportional to 742,568.80, 1,024,745.94 and 403,037.08
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Solution
The fourth proportional to 742,568.80, 1,024,745.94 and 403,037.08 is: 556,191.71
Step by Step Solution
- Step 1: Write the proportion equation
742,568.80 : 1,024,745.94 = 403,037.08 : x - Step 2: Convert to fraction form
742,568.80/1,024,745.94 = 403,037.08/x - Step 3: Cross multiply
742,568.80x = 1,024,745.94 × 403,037.08 - Step 4: Simplify right side
742,568.80x = 413,010,611,399.46 - Step 5: Solve for x
x = 413,010,611,399.46/742,568.80 - Step 6: Final answer
x = 556,191.71
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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.