Finding the Fourth Proportional to 821,894.50, 1,134,134.83 and 515,873.06
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Solution
The fourth proportional to 821,894.50, 1,134,134.83 and 515,873.06 is: 711,854.87
Step by Step Solution
- Step 1: Write the proportion equation
821,894.50 : 1,134,134.83 = 515,873.06 : x - Step 2: Convert to fraction form
821,894.50/1,134,134.83 = 515,873.06/x - Step 3: Cross multiply
821,894.50x = 1,134,134.83 × 515,873.06 - Step 4: Simplify right side
821,894.50x = 585,069,605,204.68 - Step 5: Solve for x
x = 585,069,605,204.68/821,894.50 - Step 6: Final answer
x = 711,854.87
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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.