Finding the Fourth Proportional to 692,140.87, 1,038,372.75 and 236,735.63
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Solution
The fourth proportional to 692,140.87, 1,038,372.75 and 236,735.63 is: 355,158.66
Step by Step Solution
- Step 1: Write the proportion equation
692,140.87 : 1,038,372.75 = 236,735.63 : x - Step 2: Convert to fraction form
692,140.87/1,038,372.75 = 236,735.63/x - Step 3: Cross multiply
692,140.87x = 1,038,372.75 × 236,735.63 - Step 4: Simplify right side
692,140.87x = 245,819,821,954.22 - Step 5: Solve for x
x = 245,819,821,954.22/692,140.87 - Step 6: Final answer
x = 355,158.66
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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.