Finding the Fourth Proportional to 1,201,209.58, 1,657,505.28 and 717,671.98
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Solution
The fourth proportional to 1,201,209.58, 1,657,505.28 and 717,671.98 is: 990,289.38
Step by Step Solution
- Step 1: Write the proportion equation
1,201,209.58 : 1,657,505.28 = 717,671.98 : x - Step 2: Convert to fraction form
1,201,209.58/1,657,505.28 = 717,671.98/x - Step 3: Cross multiply
1,201,209.58x = 1,657,505.28 × 717,671.98 - Step 4: Simplify right side
1,201,209.58x = 1,189,545,096,158.05 - Step 5: Solve for x
x = 1,189,545,096,158.05/1,201,209.58 - Step 6: Final answer
x = 990,289.38
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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.