Finding the Fourth Proportional to 869,428.07, 1,199,750.64 and 482,206.96
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Solution
The fourth proportional to 869,428.07, 1,199,750.64 and 482,206.96 is: 665,412.28
Step by Step Solution
- Step 1: Write the proportion equation
869,428.07 : 1,199,750.64 = 482,206.96 : x - Step 2: Convert to fraction form
869,428.07/1,199,750.64 = 482,206.96/x - Step 3: Cross multiply
869,428.07x = 1,199,750.64 × 482,206.96 - Step 4: Simplify right side
869,428.07x = 578,528,106,777.22 - Step 5: Solve for x
x = 578,528,106,777.22/869,428.07 - Step 6: Final answer
x = 665,412.28
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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.