Finding the Fourth Proportional to 1,462,331.80, 2,190,387.30 and 1,213,499.80
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Solution
The fourth proportional to 1,462,331.80, 2,190,387.30 and 1,213,499.80 is: 1,817,668.57
Step by Step Solution
- Step 1: Write the proportion equation
1,462,331.80 : 2,190,387.30 = 1,213,499.80 : x - Step 2: Convert to fraction form
1,462,331.80/2,190,387.30 = 1,213,499.80/x - Step 3: Cross multiply
1,462,331.80x = 2,190,387.30 × 1,213,499.80 - Step 4: Simplify right side
1,462,331.80x = 2,658,034,550,472.54 - Step 5: Solve for x
x = 2,658,034,550,472.54/1,462,331.80 - Step 6: Final answer
x = 1,817,668.57
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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.