Finding the Fourth Proportional to 686,142.84, 944,763.48 and 609,529.08
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Solution
The fourth proportional to 686,142.84, 944,763.48 and 609,529.08 is: 839,272.50
Step by Step Solution
- Step 1: Write the proportion equation
686,142.84 : 944,763.48 = 609,529.08 : x - Step 2: Convert to fraction form
686,142.84/944,763.48 = 609,529.08/x - Step 3: Cross multiply
686,142.84x = 944,763.48 × 609,529.08 - Step 4: Simplify right side
686,142.84x = 575,860,814,782.00 - Step 5: Solve for x
x = 575,860,814,782.00/686,142.84 - Step 6: Final answer
x = 839,272.50
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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.