Finding the Fourth Proportional to 808,713.70, 1,213,070.55 and 435,465.70
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Solution
The fourth proportional to 808,713.70, 1,213,070.55 and 435,465.70 is: 653,198.55
Step by Step Solution
- Step 1: Write the proportion equation
808,713.70 : 1,213,070.55 = 435,465.70 : x - Step 2: Convert to fraction form
808,713.70/1,213,070.55 = 435,465.70/x - Step 3: Cross multiply
808,713.70x = 1,213,070.55 × 435,465.70 - Step 4: Simplify right side
808,713.70x = 528,250,616,205.14 - Step 5: Solve for x
x = 528,250,616,205.14/808,713.70 - Step 6: Final answer
x = 653,198.55
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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.