Finding the Fourth Proportional to 879,985.50, 1,214,379.99 and 477,577.50
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Solution
The fourth proportional to 879,985.50, 1,214,379.99 and 477,577.50 is: 659,056.95
Step by Step Solution
- Step 1: Write the proportion equation
879,985.50 : 1,214,379.99 = 477,577.50 : x - Step 2: Convert to fraction form
879,985.50/1,214,379.99 = 477,577.50/x - Step 3: Cross multiply
879,985.50x = 1,214,379.99 × 477,577.50 - Step 4: Simplify right side
879,985.50x = 579,960,559,674.23 - Step 5: Solve for x
x = 579,960,559,674.23/879,985.50 - Step 6: Final answer
x = 659,056.95
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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.