Finding the Fourth Proportional to 513,814.80, 720,521.70 and 513,814.80
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Solution
The fourth proportional to 513,814.80, 720,521.70 and 513,814.80 is: 720,521.70
Step by Step Solution
- Step 1: Write the proportion equation
513,814.80 : 720,521.70 = 513,814.80 : x - Step 2: Convert to fraction form
513,814.80/720,521.70 = 513,814.80/x - Step 3: Cross multiply
513,814.80x = 720,521.70 × 513,814.80 - Step 4: Simplify right side
513,814.80x = 370,214,713,181.16 - Step 5: Solve for x
x = 370,214,713,181.16/513,814.80 - Step 6: Final answer
x = 720,521.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.