Finding the Fourth Proportional to 1,325,860.74, 1,987,459.47 and 426,641.67
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Solution
The fourth proportional to 1,325,860.74, 1,987,459.47 and 426,641.67 is: 639,534.00
Step by Step Solution
- Step 1: Write the proportion equation
1,325,860.74 : 1,987,459.47 = 426,641.67 : x - Step 2: Convert to fraction form
1,325,860.74/1,987,459.47 = 426,641.67/x - Step 3: Cross multiply
1,325,860.74x = 1,987,459.47 × 426,641.67 - Step 4: Simplify right side
1,325,860.74x = 847,933,027,338.12 - Step 5: Solve for x
x = 847,933,027,338.12/1,325,860.74 - Step 6: Final answer
x = 639,534.00
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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.