Finding the Fourth Proportional to 583,405.20, 805,099.68 and 315,133.20
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Solution
The fourth proportional to 583,405.20, 805,099.68 and 315,133.20 is: 434,884.09
Step by Step Solution
- Step 1: Write the proportion equation
583,405.20 : 805,099.68 = 315,133.20 : x - Step 2: Convert to fraction form
583,405.20/805,099.68 = 315,133.20/x - Step 3: Cross multiply
583,405.20x = 805,099.68 × 315,133.20 - Step 4: Simplify right side
583,405.20x = 253,713,638,477.38 - Step 5: Solve for x
x = 253,713,638,477.38/583,405.20 - Step 6: Final answer
x = 434,884.09
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1.5x scale
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.