Finding the Fourth Proportional to 965,401.86, 1,332,318.24 and 557,520.84
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Solution
The fourth proportional to 965,401.86, 1,332,318.24 and 557,520.84 is: 769,415.53
Step by Step Solution
- Step 1: Write the proportion equation
965,401.86 : 1,332,318.24 = 557,520.84 : x - Step 2: Convert to fraction form
965,401.86/1,332,318.24 = 557,520.84/x - Step 3: Cross multiply
965,401.86x = 1,332,318.24 × 557,520.84 - Step 4: Simplify right side
965,401.86x = 742,795,184,312.12 - Step 5: Solve for x
x = 742,795,184,312.12/965,401.86 - Step 6: Final answer
x = 769,415.53
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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.