Finding the Fourth Proportional to 472,445.40, 651,977.58 and 257,589.06
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Solution
The fourth proportional to 472,445.40, 651,977.58 and 257,589.06 is: 355,474.50
Step by Step Solution
- Step 1: Write the proportion equation
472,445.40 : 651,977.58 = 257,589.06 : x - Step 2: Convert to fraction form
472,445.40/651,977.58 = 257,589.06/x - Step 3: Cross multiply
472,445.40x = 651,977.58 × 257,589.06 - Step 4: Simplify right side
472,445.40x = 167,942,291,973.28 - Step 5: Solve for x
x = 167,942,291,973.28/472,445.40 - Step 6: Final answer
x = 355,474.50
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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.