Finding the Fourth Proportional to 839,911.70, 1,259,867.55 and 708,691.70
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Solution
The fourth proportional to 839,911.70, 1,259,867.55 and 708,691.70 is: 1,063,037.55
Step by Step Solution
- Step 1: Write the proportion equation
839,911.70 : 1,259,867.55 = 708,691.70 : x - Step 2: Convert to fraction form
839,911.70/1,259,867.55 = 708,691.70/x - Step 3: Cross multiply
839,911.70x = 1,259,867.55 × 708,691.70 - Step 4: Simplify right side
839,911.70x = 892,857,675,784.34 - Step 5: Solve for x
x = 892,857,675,784.34/839,911.70 - Step 6: Final answer
x = 1,063,037.55
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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.