Finding the Fourth Proportional to 981,281.70, 1,471,971.15 and 508,889.70
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Solution
The fourth proportional to 981,281.70, 1,471,971.15 and 508,889.70 is: 763,359.75
Step by Step Solution
- Step 1: Write the proportion equation
981,281.70 : 1,471,971.15 = 508,889.70 : x - Step 2: Convert to fraction form
981,281.70/1,471,971.15 = 508,889.70/x - Step 3: Cross multiply
981,281.70x = 1,471,971.15 × 508,889.70 - Step 4: Simplify right side
981,281.70x = 749,070,956,932.16 - Step 5: Solve for x
x = 749,070,956,932.16/981,281.70 - Step 6: Final answer
x = 763,359.75
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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.