Finding the Fourth Proportional to 4,581,259.40, 6,871,889.10 and 4,319,985.80
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Solution
The fourth proportional to 4,581,259.40, 6,871,889.10 and 4,319,985.80 is: 6,479,978.70
Step by Step Solution
- Step 1: Write the proportion equation
4,581,259.40 : 6,871,889.10 = 4,319,985.80 : x - Step 2: Convert to fraction form
4,581,259.40/6,871,889.10 = 4,319,985.80/x - Step 3: Cross multiply
4,581,259.40x = 6,871,889.10 × 4,319,985.80 - Step 4: Simplify right side
4,581,259.40x = 29,686,463,331,174.78 - Step 5: Solve for x
x = 29,686,463,331,174.78/4,581,259.40 - Step 6: Final answer
x = 6,479,978.70
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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.