Finding the Fourth Proportional to 782,132.41, 1,078,785.15 and 717,808.98
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Solution
The fourth proportional to 782,132.41, 1,078,785.15 and 717,808.98 is: 990,064.67
Step by Step Solution
- Step 1: Write the proportion equation
782,132.41 : 1,078,785.15 = 717,808.98 : x - Step 2: Convert to fraction form
782,132.41/1,078,785.15 = 717,808.98/x - Step 3: Cross multiply
782,132.41x = 1,078,785.15 × 717,808.98 - Step 4: Simplify right side
782,132.41x = 774,361,668,160.65 - Step 5: Solve for x
x = 774,361,668,160.65/782,132.41 - Step 6: Final answer
x = 990,064.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.