Finding the Fourth Proportional to 1,221,387.42, 1,830,212.84 and 652,849.43
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Solution
The fourth proportional to 1,221,387.42, 1,830,212.84 and 652,849.43 is: 978,275.52
Step by Step Solution
- Step 1: Write the proportion equation
1,221,387.42 : 1,830,212.84 = 652,849.43 : x - Step 2: Convert to fraction form
1,221,387.42/1,830,212.84 = 652,849.43/x - Step 3: Cross multiply
1,221,387.42x = 1,830,212.84 × 652,849.43 - Step 4: Simplify right side
1,221,387.42x = 1,194,853,409,372.68 - Step 5: Solve for x
x = 1,194,853,409,372.68/1,221,387.42 - Step 6: Final answer
x = 978,275.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.