Finding the Fourth Proportional to 1,600,251.99, 2,208,386.09 and 911,909.13
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Solution
The fourth proportional to 1,600,251.99, 2,208,386.09 and 911,909.13 is: 1,258,456.45
Step by Step Solution
- Step 1: Write the proportion equation
1,600,251.99 : 2,208,386.09 = 911,909.13 : x - Step 2: Convert to fraction form
1,600,251.99/2,208,386.09 = 911,909.13/x - Step 3: Cross multiply
1,600,251.99x = 2,208,386.09 × 911,909.13 - Step 4: Simplify right side
1,600,251.99x = 2,013,847,438,036.00 - Step 5: Solve for x
x = 2,013,847,438,036.00/1,600,251.99 - Step 6: Final answer
x = 1,258,456.45
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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.