Finding the Fourth Proportional to 1,385,410.74, 2,075,199.30 and 709,438.20
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Solution
The fourth proportional to 1,385,410.74, 2,075,199.30 and 709,438.20 is: 1,062,663.67
Step by Step Solution
- Step 1: Write the proportion equation
1,385,410.74 : 2,075,199.30 = 709,438.20 : x - Step 2: Convert to fraction form
1,385,410.74/2,075,199.30 = 709,438.20/x - Step 3: Cross multiply
1,385,410.74x = 2,075,199.30 × 709,438.20 - Step 4: Simplify right side
1,385,410.74x = 1,472,225,656,033.26 - Step 5: Solve for x
x = 1,472,225,656,033.26/1,385,410.74 - Step 6: Final answer
x = 1,062,663.67
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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.