Finding the Fourth Proportional to 985.13, 1,477.70 and 924.99
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Solution
The fourth proportional to 985.13, 1,477.70 and 924.99 is: 1,387.49
Step by Step Solution
- Step 1: Write the proportion equation
985.13 : 1,477.70 = 924.99 : x - Step 2: Convert to fraction form
985.13/1,477.70 = 924.99/x - Step 3: Cross multiply
985.13x = 1,477.70 × 924.99 - Step 4: Simplify right side
985.13x = 1,366,853.10 - Step 5: Solve for x
x = 1,366,853.10/985.13 - Step 6: Final answer
x = 1,387.49
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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.