Finding the Fourth Proportional to 987,220.19, 1,480,830.29 and 239,266.19
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Solution
The fourth proportional to 987,220.19, 1,480,830.29 and 239,266.19 is: 358,899.29
Step by Step Solution
- Step 1: Write the proportion equation
987,220.19 : 1,480,830.29 = 239,266.19 : x - Step 2: Convert to fraction form
987,220.19/1,480,830.29 = 239,266.19/x - Step 3: Cross multiply
987,220.19x = 1,480,830.29 × 239,266.19 - Step 4: Simplify right side
987,220.19x = 354,312,621,524.90 - Step 5: Solve for x
x = 354,312,621,524.90/987,220.19 - Step 6: Final answer
x = 358,899.29
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1.5x scale
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.