Finding the Fourth Proportional to 864,021.80, 1,296,032.70 and 811,533.80
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Solution
The fourth proportional to 864,021.80, 1,296,032.70 and 811,533.80 is: 1,217,300.70
Step by Step Solution
- Step 1: Write the proportion equation
864,021.80 : 1,296,032.70 = 811,533.80 : x - Step 2: Convert to fraction form
864,021.80/1,296,032.70 = 811,533.80/x - Step 3: Cross multiply
864,021.80x = 1,296,032.70 × 811,533.80 - Step 4: Simplify right side
864,021.80x = 1,051,774,341,955.26 - Step 5: Solve for x
x = 1,051,774,341,955.26/864,021.80 - Step 6: Final answer
x = 1,217,300.70
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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.