Finding the Fourth Proportional to 955,716.96, 1,318,865.12 and 520,115.80
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Solution
The fourth proportional to 955,716.96, 1,318,865.12 and 520,115.80 is: 717,746.59
Step by Step Solution
- Step 1: Write the proportion equation
955,716.96 : 1,318,865.12 = 520,115.80 : x - Step 2: Convert to fraction form
955,716.96/1,318,865.12 = 520,115.80/x - Step 3: Cross multiply
955,716.96x = 1,318,865.12 × 520,115.80 - Step 4: Simplify right side
955,716.96x = 685,962,586,980.90 - Step 5: Solve for x
x = 685,962,586,980.90/955,716.96 - Step 6: Final answer
x = 717,746.59
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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.