Finding the Fourth Proportional to 865,878.24, 1,298,939.28 and 266,887.68
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Solution
The fourth proportional to 865,878.24, 1,298,939.28 and 266,887.68 is: 400,369.10
Step by Step Solution
- Step 1: Write the proportion equation
865,878.24 : 1,298,939.28 = 266,887.68 : x - Step 2: Convert to fraction form
865,878.24/1,298,939.28 = 266,887.68/x - Step 3: Cross multiply
865,878.24x = 1,298,939.28 × 266,887.68 - Step 4: Simplify right side
865,878.24x = 346,670,890,900.07 - Step 5: Solve for x
x = 346,670,890,900.07/865,878.24 - Step 6: Final answer
x = 400,369.10
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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.