Finding the Fourth Proportional to 817,771.68, 1,226,908.65 and 418,692.68
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Solution
The fourth proportional to 817,771.68, 1,226,908.65 and 418,692.68 is: 628,167.59
Step by Step Solution
- Step 1: Write the proportion equation
817,771.68 : 1,226,908.65 = 418,692.68 : x - Step 2: Convert to fraction form
817,771.68/1,226,908.65 = 418,692.68/x - Step 3: Cross multiply
817,771.68x = 1,226,908.65 × 418,692.68 - Step 4: Simplify right side
817,771.68x = 513,697,664,649.14 - Step 5: Solve for x
x = 513,697,664,649.14/817,771.68 - Step 6: Final answer
x = 628,167.59
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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.