Finding the Fourth Proportional to 2,153,773.20, 2,972,207.02 and 1,186,903.49
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Solution
The fourth proportional to 2,153,773.20, 2,972,207.02 and 1,186,903.49 is: 1,637,926.82
Step by Step Solution
- Step 1: Write the proportion equation
2,153,773.20 : 2,972,207.02 = 1,186,903.49 : x - Step 2: Convert to fraction form
2,153,773.20/2,972,207.02 = 1,186,903.49/x - Step 3: Cross multiply
2,153,773.20x = 2,972,207.02 × 1,186,903.49 - Step 4: Simplify right side
2,153,773.20x = 3,527,722,885,040.50 - Step 5: Solve for x
x = 3,527,722,885,040.50/2,153,773.20 - Step 6: Final answer
x = 1,637,926.82
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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.