Finding the Fourth Proportional to 930,157.68, 1,282,735.80 and 608,143.80
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Solution
The fourth proportional to 930,157.68, 1,282,735.80 and 608,143.80 is: 838,661.92
Step by Step Solution
- Step 1: Write the proportion equation
930,157.68 : 1,282,735.80 = 608,143.80 : x - Step 2: Convert to fraction form
930,157.68/1,282,735.80 = 608,143.80/x - Step 3: Cross multiply
930,157.68x = 1,282,735.80 × 608,143.80 - Step 4: Simplify right side
930,157.68x = 780,087,823,808.04 - Step 5: Solve for x
x = 780,087,823,808.04/930,157.68 - Step 6: Final answer
x = 838,661.92
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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.