Finding the Fourth Proportional to 434,526.60, 651,839.10 and 389,878.99
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Solution
The fourth proportional to 434,526.60, 651,839.10 and 389,878.99 is: 584,862.64
Step by Step Solution
- Step 1: Write the proportion equation
434,526.60 : 651,839.10 = 389,878.99 : x - Step 2: Convert to fraction form
434,526.60/651,839.10 = 389,878.99/x - Step 3: Cross multiply
434,526.60x = 651,839.10 × 389,878.99 - Step 4: Simplify right side
434,526.60x = 254,138,369,950.51 - Step 5: Solve for x
x = 254,138,369,950.51/434,526.60 - Step 6: Final answer
x = 584,862.64
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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.