Finding the Fourth Proportional to 1,201,355.15, 1,657,847.72 and 657,479.90
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Solution
The fourth proportional to 1,201,355.15, 1,657,847.72 and 657,479.90 is: 907,310.02
Step by Step Solution
- Step 1: Write the proportion equation
1,201,355.15 : 1,657,847.72 = 657,479.90 : x - Step 2: Convert to fraction form
1,201,355.15/1,657,847.72 = 657,479.90/x - Step 3: Cross multiply
1,201,355.15x = 1,657,847.72 × 657,479.90 - Step 4: Simplify right side
1,201,355.15x = 1,090,001,558,949.15 - Step 5: Solve for x
x = 1,090,001,558,949.15/1,201,355.15 - Step 6: Final answer
x = 907,310.02
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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.