Finding the Fourth Proportional to 823,075.41, 1,240,782.23 and 768,209.05
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Solution
The fourth proportional to 823,075.41, 1,240,782.23 and 768,209.05 is: 1,158,071.46
Step by Step Solution
- Step 1: Write the proportion equation
823,075.41 : 1,240,782.23 = 768,209.05 : x - Step 2: Convert to fraction form
823,075.41/1,240,782.23 = 768,209.05/x - Step 3: Cross multiply
823,075.41x = 1,240,782.23 × 768,209.05 - Step 4: Simplify right side
823,075.41x = 953,180,138,165.18 - Step 5: Solve for x
x = 953,180,138,165.18/823,075.41 - Step 6: Final answer
x = 1,158,071.46
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.