Finding the Fourth Proportional to 5,279,288.13, 7,285,417.62 and 2,864,840.13
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Solution
The fourth proportional to 5,279,288.13, 7,285,417.62 and 2,864,840.13 is: 3,953,479.38
Step by Step Solution
- Step 1: Write the proportion equation
5,279,288.13 : 7,285,417.62 = 2,864,840.13 : x - Step 2: Convert to fraction form
5,279,288.13/7,285,417.62 = 2,864,840.13/x - Step 3: Cross multiply
5,279,288.13x = 7,285,417.62 × 2,864,840.13 - Step 4: Simplify right side
5,279,288.13x = 20,871,556,747,260.89 - Step 5: Solve for x
x = 20,871,556,747,260.89/5,279,288.13 - Step 6: Final answer
x = 3,953,479.38
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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.