Finding the Fourth Proportional to 1,057,720.42, 1,460,855.98 and 712,961.74
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Solution
The fourth proportional to 1,057,720.42, 1,460,855.98 and 712,961.74 is: 984,697.28
Step by Step Solution
- Step 1: Write the proportion equation
1,057,720.42 : 1,460,855.98 = 712,961.74 : x - Step 2: Convert to fraction form
1,057,720.42/1,460,855.98 = 712,961.74/x - Step 3: Cross multiply
1,057,720.42x = 1,460,855.98 × 712,961.74 - Step 4: Simplify right side
1,057,720.42x = 1,041,534,421,390.21 - Step 5: Solve for x
x = 1,041,534,421,390.21/1,057,720.42 - Step 6: Final answer
x = 984,697.28
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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.