Finding the Fourth Proportional to 810,263.09, 1,118,133.02 and 447,679.14
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Solution
The fourth proportional to 810,263.09, 1,118,133.02 and 447,679.14 is: 617,780.62
Step by Step Solution
- Step 1: Write the proportion equation
810,263.09 : 1,118,133.02 = 447,679.14 : x - Step 2: Convert to fraction form
810,263.09/1,118,133.02 = 447,679.14/x - Step 3: Cross multiply
810,263.09x = 1,118,133.02 × 447,679.14 - Step 4: Simplify right side
810,263.09x = 500,564,829,918.40 - Step 5: Solve for x
x = 500,564,829,918.40/810,263.09 - Step 6: Final answer
x = 617,780.62
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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.