Finding the Fourth Proportional to 946.09, 1,305.63 and 572.99
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Solution
The fourth proportional to 946.09, 1,305.63 and 572.99 is: 790.74
Step by Step Solution
- Step 1: Write the proportion equation
946.09 : 1,305.63 = 572.99 : x - Step 2: Convert to fraction form
946.09/1,305.63 = 572.99/x - Step 3: Cross multiply
946.09x = 1,305.63 × 572.99 - Step 4: Simplify right side
946.09x = 748,112.93 - Step 5: Solve for x
x = 748,112.93/946.09 - Step 6: Final answer
x = 790.74
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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.