Finding the Fourth Proportional to 2,171,028.24, 2,994,058.80 and 1,355,307.12
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Solution
The fourth proportional to 2,171,028.24, 2,994,058.80 and 1,355,307.12 is: 1,869,100.15
Step by Step Solution
- Step 1: Write the proportion equation
2,171,028.24 : 2,994,058.80 = 1,355,307.12 : x - Step 2: Convert to fraction form
2,171,028.24/2,994,058.80 = 1,355,307.12/x - Step 3: Cross multiply
2,171,028.24x = 2,994,058.80 × 1,355,307.12 - Step 4: Simplify right side
2,171,028.24x = 4,057,869,209,338.66 - Step 5: Solve for x
x = 4,057,869,209,338.66/2,171,028.24 - Step 6: Final answer
x = 1,869,100.15
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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.