Finding the Fourth Proportional to 903.74, 1,247.09 and 510.68
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Solution
The fourth proportional to 903.74, 1,247.09 and 510.68 is: 704.70
Step by Step Solution
- Step 1: Write the proportion equation
903.74 : 1,247.09 = 510.68 : x - Step 2: Convert to fraction form
903.74/1,247.09 = 510.68/x - Step 3: Cross multiply
903.74x = 1,247.09 × 510.68 - Step 4: Simplify right side
903.74x = 636,864.49 - Step 5: Solve for x
x = 636,864.49/903.74 - Step 6: Final answer
x = 704.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.