Finding the Fourth Proportional to 2,177,681.71, 3,005,122.11 and 1,197,612.28
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Solution
The fourth proportional to 2,177,681.71, 3,005,122.11 and 1,197,612.28 is: 1,652,661.69
Step by Step Solution
- Step 1: Write the proportion equation
2,177,681.71 : 3,005,122.11 = 1,197,612.28 : x - Step 2: Convert to fraction form
2,177,681.71/3,005,122.11 = 1,197,612.28/x - Step 3: Cross multiply
2,177,681.71x = 3,005,122.11 × 1,197,612.28 - Step 4: Simplify right side
2,177,681.71x = 3,598,971,141,835.51 - Step 5: Solve for x
x = 3,598,971,141,835.51/2,177,681.71 - Step 6: Final answer
x = 1,652,661.69
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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.