Finding the Fourth Proportional to 1,330,762.30, 1,997,455.65 and 657,603.70
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Solution
The fourth proportional to 1,330,762.30, 1,997,455.65 and 657,603.70 is: 987,053.98
Step by Step Solution
- Step 1: Write the proportion equation
1,330,762.30 : 1,997,455.65 = 657,603.70 : x - Step 2: Convert to fraction form
1,330,762.30/1,997,455.65 = 657,603.70/x - Step 3: Cross multiply
1,330,762.30x = 1,997,455.65 × 657,603.70 - Step 4: Simplify right side
1,330,762.30x = 1,313,534,226,025.90 - Step 5: Solve for x
x = 1,313,534,226,025.90/1,330,762.30 - Step 6: Final answer
x = 987,053.98
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1.5x scale
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.