Finding the Fourth Proportional to 1,319,315.99, 1,975,749.35 and 1,191,521.03
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Solution
The fourth proportional to 1,319,315.99, 1,975,749.35 and 1,191,521.03 is: 1,784,369.27
Step by Step Solution
- Step 1: Write the proportion equation
1,319,315.99 : 1,975,749.35 = 1,191,521.03 : x - Step 2: Convert to fraction form
1,319,315.99/1,975,749.35 = 1,191,521.03/x - Step 3: Cross multiply
1,319,315.99x = 1,975,749.35 × 1,191,521.03 - Step 4: Simplify right side
1,319,315.99x = 2,354,146,903,983.80 - Step 5: Solve for x
x = 2,354,146,903,983.80/1,319,315.99 - Step 6: Final answer
x = 1,784,369.27
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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.