Finding the Fourth Proportional to 403,822.80, 605,215.80 and 309,862.80
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Solution
The fourth proportional to 403,822.80, 605,215.80 and 309,862.80 is: 464,396.42
Step by Step Solution
- Step 1: Write the proportion equation
403,822.80 : 605,215.80 = 309,862.80 : x - Step 2: Convert to fraction form
403,822.80/605,215.80 = 309,862.80/x - Step 3: Cross multiply
403,822.80x = 605,215.80 × 309,862.80 - Step 4: Simplify right side
403,822.80x = 187,533,862,392.24 - Step 5: Solve for x
x = 187,533,862,392.24/403,822.80 - Step 6: Final answer
x = 464,396.42
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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.