Finding the Fourth Proportional to 875,021.13, 1,312,605.81 and 243,935.55
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Solution
The fourth proportional to 875,021.13, 1,312,605.81 and 243,935.55 is: 365,923.99
Step by Step Solution
- Step 1: Write the proportion equation
875,021.13 : 1,312,605.81 = 243,935.55 : x - Step 2: Convert to fraction form
875,021.13/1,312,605.81 = 243,935.55/x - Step 3: Cross multiply
875,021.13x = 1,312,605.81 × 243,935.55 - Step 4: Simplify right side
875,021.13x = 320,191,220,195.55 - Step 5: Solve for x
x = 320,191,220,195.55/875,021.13 - Step 6: Final answer
x = 365,923.99
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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.