Finding the Fourth Proportional to 413,135.04, 619,637.76 and 113,638.08
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Solution
The fourth proportional to 413,135.04, 619,637.76 and 113,638.08 is: 170,439.30
Step by Step Solution
- Step 1: Write the proportion equation
413,135.04 : 619,637.76 = 113,638.08 : x - Step 2: Convert to fraction form
413,135.04/619,637.76 = 113,638.08/x - Step 3: Cross multiply
413,135.04x = 619,637.76 × 113,638.08 - Step 4: Simplify right side
413,135.04x = 70,414,445,341.90 - Step 5: Solve for x
x = 70,414,445,341.90/413,135.04 - Step 6: Final answer
x = 170,439.30
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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.