Finding the Fourth Proportional to 1,041.03, 1,560 and 423.99
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Solution
The fourth proportional to 1,041.03, 1,560 and 423.99 is: 635.36
Step by Step Solution
- Step 1: Write the proportion equation
1,041.03 : 1,560 = 423.99 : x - Step 2: Convert to fraction form
1,041.03/1,560 = 423.99/x - Step 3: Cross multiply
1,041.03x = 1,560 × 423.99 - Step 4: Simplify right side
1,041.03x = 661,424.40 - Step 5: Solve for x
x = 661,424.40/1,041.03 - Step 6: Final answer
x = 635.36
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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.