Finding the Fourth Proportional to 448,432.76, 618,812.52 and 257,433.68
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Solution
The fourth proportional to 448,432.76, 618,812.52 and 257,433.68 is: 355,244.31
Step by Step Solution
- Step 1: Write the proportion equation
448,432.76 : 618,812.52 = 257,433.68 : x - Step 2: Convert to fraction form
448,432.76/618,812.52 = 257,433.68/x - Step 3: Cross multiply
448,432.76x = 618,812.52 × 257,433.68 - Step 4: Simplify right side
448,432.76x = 159,303,184,253.67 - Step 5: Solve for x
x = 159,303,184,253.67/448,432.76 - Step 6: Final answer
x = 355,244.31
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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.