Finding the Fourth Proportional to 1,330,697.30, 1,997,358.15 and 657,538.70
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Solution
The fourth proportional to 1,330,697.30, 1,997,358.15 and 657,538.70 is: 986,956.45
Step by Step Solution
- Step 1: Write the proportion equation
1,330,697.30 : 1,997,358.15 = 657,538.70 : x - Step 2: Convert to fraction form
1,330,697.30/1,997,358.15 = 657,538.70/x - Step 3: Cross multiply
1,330,697.30x = 1,997,358.15 × 657,538.70 - Step 4: Simplify right side
1,330,697.30x = 1,313,340,281,385.40 - Step 5: Solve for x
x = 1,313,340,281,385.40/1,330,697.30 - Step 6: Final answer
x = 986,956.45
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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.