Finding the Fourth Proportional to 448,431.76, 618,811.14 and 257,432.68
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Solution
The fourth proportional to 448,431.76, 618,811.14 and 257,432.68 is: 355,242.93
Step by Step Solution
- Step 1: Write the proportion equation
448,431.76 : 618,811.14 = 257,432.68 : x - Step 2: Convert to fraction form
448,431.76/618,811.14 = 257,432.68/x - Step 3: Cross multiply
448,431.76x = 618,811.14 × 257,432.68 - Step 4: Simplify right side
448,431.76x = 159,302,210,184.06 - Step 5: Solve for x
x = 159,302,210,184.06/448,431.76 - Step 6: Final answer
x = 355,242.93
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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.