Finding the Fourth Proportional to 877,505.84, 1,211,379.10 and 555,372.08
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Solution
The fourth proportional to 877,505.84, 1,211,379.10 and 555,372.08 is: 766,679.95
Step by Step Solution
- Step 1: Write the proportion equation
877,505.84 : 1,211,379.10 = 555,372.08 : x - Step 2: Convert to fraction form
877,505.84/1,211,379.10 = 555,372.08/x - Step 3: Cross multiply
877,505.84x = 1,211,379.10 × 555,372.08 - Step 4: Simplify right side
877,505.84x = 672,766,130,435.53 - Step 5: Solve for x
x = 672,766,130,435.53/877,505.84 - Step 6: Final answer
x = 766,679.95
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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.