Finding the Fourth Proportional to 553,293.24, 763,557.68 and 308,294.56
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Solution
The fourth proportional to 553,293.24, 763,557.68 and 308,294.56 is: 425,453.75
Step by Step Solution
- Step 1: Write the proportion equation
553,293.24 : 763,557.68 = 308,294.56 : x - Step 2: Convert to fraction form
553,293.24/763,557.68 = 308,294.56/x - Step 3: Cross multiply
553,293.24x = 763,557.68 × 308,294.56 - Step 4: Simplify right side
553,293.24x = 235,400,678,990.22 - Step 5: Solve for x
x = 235,400,678,990.22/553,293.24 - Step 6: Final answer
x = 425,453.75
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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.