Finding the Fourth Proportional to 917.99, 1,266.84 and 525
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Solution
The fourth proportional to 917.99, 1,266.84 and 525 is: 724.51
Step by Step Solution
- Step 1: Write the proportion equation
917.99 : 1,266.84 = 525 : x - Step 2: Convert to fraction form
917.99/1,266.84 = 525/x - Step 3: Cross multiply
917.99x = 1,266.84 × 525 - Step 4: Simplify right side
917.99x = 665,091 - Step 5: Solve for x
x = 665,091/917.99 - Step 6: Final answer
x = 724.51
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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.