Finding the Fourth Proportional to 611,444.21, 913,048.84 and 499,346.81
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Solution
The fourth proportional to 611,444.21, 913,048.84 and 499,346.81 is: 745,657.60
Step by Step Solution
- Step 1: Write the proportion equation
611,444.21 : 913,048.84 = 499,346.81 : x - Step 2: Convert to fraction form
611,444.21/913,048.84 = 499,346.81/x - Step 3: Cross multiply
611,444.21x = 913,048.84 × 499,346.81 - Step 4: Simplify right side
611,444.21x = 455,928,019,814.59 - Step 5: Solve for x
x = 455,928,019,814.59/611,444.21 - Step 6: Final answer
x = 745,657.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.