Finding the Fourth Proportional to 808,315.18, 1,212,881.55 and 538,626.94
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Solution
The fourth proportional to 808,315.18, 1,212,881.55 and 538,626.94 is: 808,212.80
Step by Step Solution
- Step 1: Write the proportion equation
808,315.18 : 1,212,881.55 = 538,626.94 : x - Step 2: Convert to fraction form
808,315.18/1,212,881.55 = 538,626.94/x - Step 3: Cross multiply
808,315.18x = 1,212,881.55 × 538,626.94 - Step 4: Simplify right side
808,315.18x = 653,290,677,858.96 - Step 5: Solve for x
x = 653,290,677,858.96/808,315.18 - Step 6: Final answer
x = 808,212.80
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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.