Finding the Fourth Proportional to 747,861.58, 1,121,762.94 and 249,225.58
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Solution
The fourth proportional to 747,861.58, 1,121,762.94 and 249,225.58 is: 373,828.56
Step by Step Solution
- Step 1: Write the proportion equation
747,861.58 : 1,121,762.94 = 249,225.58 : x - Step 2: Convert to fraction form
747,861.58/1,121,762.94 = 249,225.58/x - Step 3: Cross multiply
747,861.58x = 1,121,762.94 × 249,225.58 - Step 4: Simplify right side
747,861.58x = 279,572,019,344.01 - Step 5: Solve for x
x = 279,572,019,344.01/747,861.58 - Step 6: Final answer
x = 373,828.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.