Finding the Fourth Proportional to 855,225.19, 1,180,242.26 and 553,419.19
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Solution
The fourth proportional to 855,225.19, 1,180,242.26 and 553,419.19 is: 763,738.86
Step by Step Solution
- Step 1: Write the proportion equation
855,225.19 : 1,180,242.26 = 553,419.19 : x - Step 2: Convert to fraction form
855,225.19/1,180,242.26 = 553,419.19/x - Step 3: Cross multiply
855,225.19x = 1,180,242.26 × 553,419.19 - Step 4: Simplify right side
855,225.19x = 653,168,715,532.97 - Step 5: Solve for x
x = 653,168,715,532.97/855,225.19 - Step 6: Final answer
x = 763,738.86
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1.5x scale
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.