Finding the Fourth Proportional to 2,889,089.76, 3,985,873.20 and 1,871,055.84
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Solution
The fourth proportional to 2,889,089.76, 3,985,873.20 and 1,871,055.84 is: 2,581,363.66
Step by Step Solution
- Step 1: Write the proportion equation
2,889,089.76 : 3,985,873.20 = 1,871,055.84 : x - Step 2: Convert to fraction form
2,889,089.76/3,985,873.20 = 1,871,055.84/x - Step 3: Cross multiply
2,889,089.76x = 3,985,873.20 × 1,871,055.84 - Step 4: Simplify right side
2,889,089.76x = 7,457,791,328,359.49 - Step 5: Solve for x
x = 7,457,791,328,359.49/2,889,089.76 - Step 6: Final answer
x = 2,581,363.66
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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.