Finding the Fourth Proportional to 2,015,587.70, 2,781,406.05 and 1,251,624.98
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Solution
The fourth proportional to 2,015,587.70, 2,781,406.05 and 1,251,624.98 is: 1,727,177.29
Step by Step Solution
- Step 1: Write the proportion equation
2,015,587.70 : 2,781,406.05 = 1,251,624.98 : x - Step 2: Convert to fraction form
2,015,587.70/2,781,406.05 = 1,251,624.98/x - Step 3: Cross multiply
2,015,587.70x = 2,781,406.05 × 1,251,624.98 - Step 4: Simplify right side
2,015,587.70x = 3,481,277,291,703.13 - Step 5: Solve for x
x = 3,481,277,291,703.13/2,015,587.70 - Step 6: Final answer
x = 1,727,177.29
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1.5x scale
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.