Finding the Fourth Proportional to 2,163,319.92, 2,985,118.92 and 1,196,318.52
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Solution
The fourth proportional to 2,163,319.92, 2,985,118.92 and 1,196,318.52 is: 1,650,774.36
Step by Step Solution
- Step 1: Write the proportion equation
2,163,319.92 : 2,985,118.92 = 1,196,318.52 : x - Step 2: Convert to fraction form
2,163,319.92/2,985,118.92 = 1,196,318.52/x - Step 3: Cross multiply
2,163,319.92x = 2,985,118.92 × 1,196,318.52 - Step 4: Simplify right side
2,163,319.92x = 3,571,153,048,398.40 - Step 5: Solve for x
x = 3,571,153,048,398.40/2,163,319.92 - Step 6: Final answer
x = 1,650,774.36
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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.