Finding the Fourth Proportional to 2,963,305.12, 4,089,380.70 and 1,605,178.12
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Solution
The fourth proportional to 2,963,305.12, 4,089,380.70 and 1,605,178.12 is: 2,215,156.44
Step by Step Solution
- Step 1: Write the proportion equation
2,963,305.12 : 4,089,380.70 = 1,605,178.12 : x - Step 2: Convert to fraction form
2,963,305.12/4,089,380.70 = 1,605,178.12/x - Step 3: Cross multiply
2,963,305.12x = 4,089,380.70 × 1,605,178.12 - Step 4: Simplify right side
2,963,305.12x = 6,564,184,423,990.29 - Step 5: Solve for x
x = 6,564,184,423,990.29/2,963,305.12 - Step 6: Final answer
x = 2,215,156.44
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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.