Finding the Fourth Proportional to 785,733.84, 1,178,687.70 and 280,412.64
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Solution
The fourth proportional to 785,733.84, 1,178,687.70 and 280,412.64 is: 420,649.99
Step by Step Solution
- Step 1: Write the proportion equation
785,733.84 : 1,178,687.70 = 280,412.64 : x - Step 2: Convert to fraction form
785,733.84/1,178,687.70 = 280,412.64/x - Step 3: Cross multiply
785,733.84x = 1,178,687.70 × 280,412.64 - Step 4: Simplify right side
785,733.84x = 330,518,929,692.53 - Step 5: Solve for x
x = 330,518,929,692.53/785,733.84 - Step 6: Final answer
x = 420,649.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.