Finding the Fourth Proportional to 885,889.99, 1,329,028.78 and 286,911.70
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Solution
The fourth proportional to 885,889.99, 1,329,028.78 and 286,911.70 is: 430,430.31
Step by Step Solution
- Step 1: Write the proportion equation
885,889.99 : 1,329,028.78 = 286,911.70 : x - Step 2: Convert to fraction form
885,889.99/1,329,028.78 = 286,911.70/x - Step 3: Cross multiply
885,889.99x = 1,329,028.78 × 286,911.70 - Step 4: Simplify right side
885,889.99x = 381,313,906,618.73 - Step 5: Solve for x
x = 381,313,906,618.73/885,889.99 - Step 6: Final answer
x = 430,430.31
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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.