Finding the Fourth Proportional to 611,390.12, 843,818.76 and 356,740.68
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Solution
The fourth proportional to 611,390.12, 843,818.76 and 356,740.68 is: 492,360.72
Step by Step Solution
- Step 1: Write the proportion equation
611,390.12 : 843,818.76 = 356,740.68 : x - Step 2: Convert to fraction form
611,390.12/843,818.76 = 356,740.68/x - Step 3: Cross multiply
611,390.12x = 843,818.76 × 356,740.68 - Step 4: Simplify right side
611,390.12x = 301,024,478,239.16 - Step 5: Solve for x
x = 301,024,478,239.16/611,390.12 - Step 6: Final answer
x = 492,360.72
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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.