Finding the Fourth Proportional to 1,217,134.40, 1,679,237.55 and 700,877.21
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Solution
The fourth proportional to 1,217,134.40, 1,679,237.55 and 700,877.21 is: 966,975.65
Step by Step Solution
- Step 1: Write the proportion equation
1,217,134.40 : 1,679,237.55 = 700,877.21 : x - Step 2: Convert to fraction form
1,217,134.40/1,679,237.55 = 700,877.21/x - Step 3: Cross multiply
1,217,134.40x = 1,679,237.55 × 700,877.21 - Step 4: Simplify right side
1,217,134.40x = 1,176,939,322,546.26 - Step 5: Solve for x
x = 1,176,939,322,546.26/1,217,134.40 - Step 6: Final answer
x = 966,975.65
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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.