Finding the Fourth Proportional to 1,021,036.20, 1,531,554.30 and 310,971.99
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Solution
The fourth proportional to 1,021,036.20, 1,531,554.30 and 310,971.99 is: 466,457.99
Step by Step Solution
- Step 1: Write the proportion equation
1,021,036.20 : 1,531,554.30 = 310,971.99 : x - Step 2: Convert to fraction form
1,021,036.20/1,531,554.30 = 310,971.99/x - Step 3: Cross multiply
1,021,036.20x = 1,531,554.30 × 310,971.99 - Step 4: Simplify right side
1,021,036.20x = 476,270,488,464.06 - Step 5: Solve for x
x = 476,270,488,464.06/1,021,036.20 - Step 6: Final answer
x = 466,457.99
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1.5x scale
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.