Finding the Fourth Proportional to 1,379,479.35, 2,069,306.49 and 432,887.43
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Solution
The fourth proportional to 1,379,479.35, 2,069,306.49 and 432,887.43 is: 649,358.59
Step by Step Solution
- Step 1: Write the proportion equation
1,379,479.35 : 2,069,306.49 = 432,887.43 : x - Step 2: Convert to fraction form
1,379,479.35/2,069,306.49 = 432,887.43/x - Step 3: Cross multiply
1,379,479.35x = 2,069,306.49 × 432,887.43 - Step 4: Simplify right side
1,379,479.35x = 895,776,768,338.42 - Step 5: Solve for x
x = 895,776,768,338.42/1,379,479.35 - Step 6: Final answer
x = 649,358.59
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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.