Finding the Fourth Proportional to 690,898.36, 1,036,347.55 and 269,878.99
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Solution
The fourth proportional to 690,898.36, 1,036,347.55 and 269,878.99 is: 404,818.48
Step by Step Solution
- Step 1: Write the proportion equation
690,898.36 : 1,036,347.55 = 269,878.99 : x - Step 2: Convert to fraction form
690,898.36/1,036,347.55 = 269,878.99/x - Step 3: Cross multiply
690,898.36x = 1,036,347.55 × 269,878.99 - Step 4: Simplify right side
690,898.36x = 279,688,424,226.54 - Step 5: Solve for x
x = 279,688,424,226.54/690,898.36 - Step 6: Final answer
x = 404,818.48
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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.